Finally. The end of my struggle with Pop!OS22.04. Turns out that System 76's product is not crap. That the real culprit in attempting to run Wine 8.0.2 with a 25 year old Photoshop 5.5 is Nvidia and the drivers offered for my Ti1660 video card. I'm on Pop right now, and everything runs great under the open source Xorg driver.
Gave me time to to reflect on Ubuntu in comparison. I had an initial false impression largely because Ubuntu boots up with the open source driver, allowing you to install a proprietary Nvidia driver later if need be. So I was able to run Photoshop, and thought everything was hunky-dory. Which sadly was not the case.
I ran into some glitches that Ubuntu reported, yet didn't go into detail about. But what was the real issue was that despite getting Photoshop to run under the latest version of Wine (8.0.2) I couldn't for the life of me get the system to acknowledge Photoshop .psd file thumbnails in the Nautilus file manager. The exact same file manager Pop!OS uses! Go figure. Googled all the possible explanations , but ultimately found no solutions. In Pop!OS I had no issues with .PSD thumbnails, other than to make sure I installed Gimp 2.10 first, and then installed Photoshop. Opening up all my .psd files in Gimp first allowed the system to generate the thumbnails I needed. Other formats like .PNG and .JPG showed their respective thumbnails instantly without incident.
I've rationalized that it would be a bad idea to monkey around with the icons again, that caused an unrecoverable crash with Pop!OS22.04. While switching video drivers solved the Photoshop issue with Wine, I'm now guessing that it may well be mutually exclusive to the icon issue. As I used Numix icons as a theme before without incident, I'll probably wait until I find another such theme to switch all the icons, provided it doesn't mess up other icons like those in the file manager. Numix icons looked nice and uniform, but as I mentioned in an earlier post their file manager icons were horrible.
If I didn't know better, I'd say that Adobe is not appreciated any more than Nvidia given their proprietary nature that keeps Linux gurus from fixing their software to optimally run on Linux. Though with the open source driver it allows me to run Photoshop better than even Windows 10.
The only remaining mystery is a big one. That Linux Mint 21.2 runs the latest version of a proprietary Nvidia driver, along with the latest version of Wine. And runs Photoshop without incident. Totally contrary to what Ubuntu and Pop!OS seem to be capable of. Though in retrospect, I can now recall why I earlier had no such issues with Pop!OS. Because I was running an outdated Nvidia Ti650 card with a series "3" proprietary driver. Wine versions 6.0+ worked fine to open Photoshop with that hardware.
So when I upgraded to a Ti1660 video card, the upgrade had no negative effect with Linux Mint 21.2.
I figure I'm still getting the full use of my Nvidia graphics card through Linux Mint 21.2, so running Pop!OS22.04 is no big deal. For the most part I want to use it to play with all the customizationyou can do courtesy of Gnome Shell Extensions. Something that up to now has remained quite limited with Linux Mint 21.2.
I have the distinct impression that if I were to replace my more powerful video card (Ti1660) with my other one (Ti650) everything would work fine and each platform. But then Nvidia itself considers my old Ti650 card to literally be "worthless". So I'll probably keep everything as is for now.