For the impatient, it turns out there is a way to make METAL GEAR SOLID 2: Sons of Liberty - Master Collection Version and METAL GEAR SOLID 3: Snake Eater - Master Collection Version actually work on Steam Deck and desktop Linux.
The Vita version is flawless, I guess because it’s a native port rather than emulation. Emulation of certain PS2 games can be tricky due to the weird CPU architecture
The Vita version is flawless, I guess because it’s a native port rather than emulation. Emulation of certain PS2 games can be tricky due to the weird CPU architecture