Make sure ingame resolution is set to 16:10 and not higher than steamdeck. including windowed mode (i guess it is already windowed). maybe changing settings allow get rid of black bars. since proton is wine i guess there is somewhere wine-setting for this game,where resolution and mode can be wrapped and most likely set to windowed.
As was expected, Crash Bandicoot N. Sane Trilogy brings back some of the popular easter eggs from the original games, but remasters them with glorious 4K visuals.One of these easter eggs, the
1.01 (Day 1 Patch) The extra level Stormy Ascent and its 2 trophies can be accessed in Crash 1. Fixed only 1 mask carrying over between levels even if you got 2. Masks gained during time trials no longer carry over between levels. After quitting a level, the mask count will not be higher than the count when entered. Crash Bandicoot: Warped. This one’s the easiest — Coco’s unlocked straight from the start. You’ll need to go and interact with her in the main platform before you can turn the toggle off and on. Once done, you can hit R2 to change playable character. You don’t need to do this to play the levels that were originally Coco’s, of course.

Crash Bandicoot. Crash Bandicoot is the title character and main protagonist of the Crash Bandicoot series. Introduced in the 1996 video game Crash Bandicoot, Crash is a mutant eastern barred bandicoot who was genetically enhanced by the series' main antagonist Doctor Neo Cortex and soon escaped from Cortex's castle after a failed experiment in

There is a lot of people with this problem and I found the solution and is very easy. Open the game then you need to go to "Display Settings" change the screen scaling to any percentage and then change it back to where it was before, and that's it. This is the solution that worked for me. MdACa.
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  • crash bandicoot n sane trilogy resolution fix