I updated to Mac OS Tahoe 26.5.2, LR will not open. Icon will bounce once and do nothing

I have the exact same problem as well.  Photoshop, Bridge and Lightroom classic open fine, Lightroom desktop version will not open.  I looked at the steps for using the Creative Cloud Cleaner Tool and it seems to be beyond my computer capabilities. 

Hi ​@ericmdrs, thanks for reaching out! Let’s try a few things to see if we can get Lightroom to open again.

• Update Creative Cloud Desktop to the latest version first, then update Lightroom.
• Force-quit Adobe background processes (Activity Monitor → quit Adobe Desktop Service, CCXProcess, Core Sync), then reboot.
• Check Privacy permissions: go to System Settings → Privacy & Security → Full Disk Access, and make sure Lightroom and Creative Cloud are enabled. Also check Files and Folders.
• Try holding Option on launch and test whether the app itself opens.

If none of these help, please try a clean reinstall using the Creative Cloud Cleaner Tool. I hope this helps! ^CH

Got the same exact problem :( on a macbook air m2