Just curious, which games gave you problems?
One of the boons of console hardware is also the strict execution environment that is presented on the system. While this of course doesn't prevent all cheating behavior in online games, a large selling point of it as a platform to publishers is not only the market segment available, but the security aspects of the runtime environment.
E.g. "I'm going to go to the beach all day" and "I'm going to keep my job" are both likely the results of ideal type wants whereas "I'm going to go to my job today and then the beach tonight" would likely be the result of a constrained want.
Scrolling to Medals, 50% of all 25.000+ games tracked by the site are playable, either working perfectly or mostly (Platinum or Gold ratings). Another 20% can be alright under specific circumstances, and with compromises (Silver rating).
At some point, Proton users reported success using some patch, then that stopped working, then there was a different patch... A lot of user reports say "thumbs up" then have a comment explaining how it goes out-of-sync unless you fiddle with it, so it's hard to trust.
Seems the root of the problem is this game's picky netcode, which is similar to the original 1998 game I played as a kid. If your game state diverges from the other players' at all, it goes oos and ends the game for everyone. And yes this happened often enough that people had an abbreviation for it.
That was as far as I was able to take it. Another much more skilled dev at CW dug in a lot deeper and wrote a blog post about it[1], but as far as I know the problem remains unsolved.
[1] https://www.codeweavers.com/blog/rbernon/2022/9/12/ucrtcring...
For a practical solution, just using the Windows dlls seems to work fine. Without AoE2:DE goes out of sync immediately, with I've played hour long games.
Anyway it'd be great if the game devs included their own math libraries instead of relying on the OS's. That would fix the problem quite nicely.
Oos can till happen, but as you said it can also happen on Windows, hard to blame Wine for that.
Since gold means "works as good as Windows with workarounds" I think that's a correct rating.
Also, "gold" should mean that it works by default, not that you have to patch in a DLL. The only place the site even says "playable with tweaks" is in a tooltip if you hover over the gold symbol, right above a separate list of details that doesn't mention tweaks. I didn't even know until now.
We can argue all day over what a rating means, but if it would work without a tweak I'd say it should be rated platinum. (The only other thing I know is missing is Xbox live login, but I don't really care about that)
One problem that was unsolved last time I checked: Saving highlight videos. It used to work if you told Overwatch to use webm format instead of mp4, but Blizzard broke that somewhere along the line, possibly in the transition to Overwatch 2. (I worked around this with OBS Studio and its replay buffer feature.)
The former ran slowly at low settings, with the occasional complete single digit slowdown. On the same laptop in Windows 10, it ran medium settings and easily twice the frame rate, no issues.
The latter wouldn't connect to multiplayer, and would occasionally just crash out.
(Comment written from memory, but I enshrined my experiment here: https://retorch.com/blog/linux-mint.htm )
Anything "denied" won't work ever unless they change their minds. Anything "broken" is...well...broken.