Probably as you’re downloading the Linux version. Run it with Proton instead since the Linux version isn’t really supported. Properties - Compatibility - tick the box, select Proton 9.

Specifically, Windows will always grab the Windows version (obviously); the Deck will grab the Windows version if the Deck Verified process has set recommended_runtime:proton-stable in the game's manifest; and Linux will grab the Linux version if there is one or the Windows version if you manually pick Proton.

Also, don't access the same library files from both Windows & Linux.

Please don't share the Steam Libriary Data Files between Windows and Linux. I tried that also in the past. Please don't do that and have a simpler life with less bugs through letting the Windows steam has it's own Libriary and The Linux steam also its seperate own Libriary.

Also don't just mount the Windows NTFS Filesystem and run everything from that. (That also will very likely get you Bugs that only are caused because you use NTFS under Linux for more than Sharing some Files.

Linux Can Read NTFS of course, but NTFS is not native to Linux. Share Files like copy them over to a Linux Fielsystem → OK but using it for everything NO.

It's just the Experience from another Windows to Linux switcher (a long time ago).

Probably as you’re downloading the Linux version. Run it with Proton instead since the Linux version isn’t really supported. Properties - Compatibility - tick the box, select Proton 9.

Yeah, sadly Aspyr seems to have lost either the license to get the latest versions to port, or decided they were too small at this point to bother with it, and instead they did the Tomb Raider 1-3 remasters. I think it's still technically supported, so if you file a bug, they'll respond to it, but it isn't likely they'll actually fix it.

This is pretty much why third party porting houses are at an extreme disadvantage, and the companies should mainline their linux ports in the first place.

I think even the mac version isn't up to the latest of it, right?