I think that my recent history with Samsung phones may help you.
For some years, I stopped using card readers for the phone and I found two ways to connect my Samsung S8 and my wife's S7 without a cable, directly from Dropbox or Google Photos. That's what I would recommend now, here is why.
I had to change my ageing S8 because the USB socket failed; not a rare occurence described on the Web. No way to charge the phone as I was not aware of the ability to charge via an induction charger. So I bought a Samsung A53 and asked the dealer to migrate my data while I still had enough charge level. This also prevented me to use a cable. Also it was time to get a new battery.
Big problem in the migration. I had a big micro SD card where I had stored many files from my other cameras. I had also set the phone to store my phone photos on the SD card. This meant that the transfer could not be processed in a couple of hours, that required nearly a full day. Worse, when I attempted to 'Get the photos from camera...' I realized that the transfer had created duplicates and triplicates on the phone AND on the SD card. The downloader was not smart enough to filter the duplicates, so I had to stop the process and to try to solve the duplication problems.
That meant using the Samsung original cable to connect the phone to the PC.
I did not succeed immediately. I had to understand that the phone had to be active and watched the Windows autoplay message asking me to choose between downloading media or using the phone as an external drive (the good solution). That enabled me to clean up the mess and to delete most of the duplicates.
Even after that cleaning, the organizer downloading time is much too long as the downloader insists on scanning all the photos on the phone and the card. The obvious solution for me is to 'Import from files and folders' to be selective and scan only the DCIM folder on the SD card and only select by date the latest shots.
Side note:
I do use the downloader advanced feature to automatically create date based folders in the catalogs. So, my workflow is to go to the DCIM folder, select all the files for a recent period and I copy them to a USB stick, from which I import in the catalog.