Photoshop/Adobe Programs Crashing iMac

The short of it - photoshop will freeze/completely crash my iMac (usually when trying to save a file, but has happened a number of other times). At this time I'm not able to use photoshop and save the file without it crashing my computer - Adobe has not given me an answer and I can't complete the work for my current jobs.

The long of it - About 2+ months ago I was using photoshop to create/save files as I always have. I completed a project, uploaded the files to my website and to my printer. Everything was viewed/approved by the client. I received the prints to find they were showing artifacting. I went back to view the files and they had in fact changed (this happened somewhere between 12hrs-2days after the files were saved/uploaded to different platforms. The files were not opened or edited, but somehow the jpeg files had artifacted across all platforms/systems (my computer, my website, and my printers ftp site). This was replicated a few more times on different projects at which point I decided it was time for a new computer because I was told it was likely a bad graphics card or something in my actual system. I purchased a brand new iMac and installed photoshop only to find that I could not "save and replace" a file. I could save a psd file and then a jpeg file as normal, but if I edited the psd and then needed to save and replace the old jpeg file it would just make a new copy (the program even asked "are you sure you'd like to replace the jpeg file" to which I would click yes and I'd still just get a new copy. So we can use "dog.psd - dog.jpg - dog copy.jpg - dog copy2.jpg" as reference and it would go on and on from there not replacing the original jpg. This is an action I repeat multi-daily so I reached out to Adobe and asked for help and after days/hours of "support" received no answers and I had to return the new iMac. I went back to the old iMac and updated photoshop and that seemed to resolve the artifacting issue. A couple weeks of what I would consider normal use goes by and I start getting program error messages intermittently - "cannot use eraser because of program error, cannot save file because of program error, cannot complete request because of program error" - this happened many many times and about 20% of the time one of these errors would pop up my iMac would crash/restart. Well... about 1 week of dealing with these errors/asking for help my iMac finally crashed and would not come back on. I took it in for repair - they could find no diagnosable issues and decided to put in a new ssd. While this work was being done I decided to try switching over to a PC so I bought yet another new computer, downloaded photoshop and continued to get program errors and realized I was no longer able to just "save" a jpeg. Upon some internet searching it seems that Adobe is now requiring users to "save a copy" in order to save a jpeg - so I would try this method and it would put " copy" at the end of all my files and I'd need to manually go in and delete (I'm really hoping this isn't a standard, from what I've read this is an on-going change/situation). So between the program errors I received and the issues with saving I yet again, returned the new PC. I received my original iMac back with the new hardrive about a week ago. I've been working on it lightly without any major issues when I was prompted to update photoshop (from what I've been told by Adobe, I must continue to stay current with the updates to prevent problems). WELL I update and photoshop starts giving me the spinning wheel/freezing when trying to save files and subsequently crashing/restarting my computer. I essentially cannot open/work/save a file in photoshop without my computer crashing which has rendered me basically unable to work. These issues are similarly replicated in lightroom and bridge as well, but I don't use those as heavily. I've asked adobe for help a number of times and they do not have answers and are not acknowleding the money I have lost due to the program creating corrupt files/breaking the system and the ongoing inability I now face to get work done for clients.

I'm really at a total loss. Purchasing a new computer/downloading the programs again hasn't seemed to help the situation and I am now told to wait until Monday for more "support" to help find a solution. I'm terrified that any attempt to work with an adobe product will again completely crash/break my computer and I will be out more money with no fix or acknowledgment from Adobe. I'm currently trying to get acccostumed to Affinity to complete my deadline projects for clients, but am otherwise unable to get my work done with the programs I am paying the subscription fee for as well. Am I out of line to think this is ridiculous and be insanely frustrated with this issues? Am I missing something obvious that's going on and would resolve these issues? I'm willing to invest in a new computer/do what I need to do resolve this, but every attempt has led to differet and/or more problems. I know these programs are being used daily by numerous people, but every person I've turned to for help (it's been many many many in all different places) has come up with no reason/answers and I'm really stuck.

If you've made it through reading this, thanks - I appreciate any help with the situation.