when I open the game I see the "!" symbol around the map. also, my jump height is bugged? I jump way too high. I am on Linux btw so it may be that
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The fact that you jump too high makes me think that you've got a conflicting addon that replaced the player class and possibly other things, double check that you're not running the game with other mods or addons, if necessary, put gzdoom and doom2.wad in a new folder and let it generate a fresh config and try running the game from there