1 point
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What problems do you anticipate? Wine, which Proton is just a modified version of, implements file dialogs. If it didn’t, just about every application that isn’t a game would be broken. Needing to open files is pretty ubiquitous, after all. You need file dialogs for that.
2 points
Well part of what it does is grab your actual desktop background to use, and there’s a couple different ways to do that on Linux afaik
Also I guess the file dialogs would open only to the wine prefix? My experience with wine applications and dialogs is mostly through bottles, so I’m not sure of the sandboxing…
