Don’t increase VRAM from 1GB to 4GB in Steam Deck Bios – UMA Frame buffer | it helps only in Windows

On official AMD page the producer recommends to let VRAM on Auto. Also they say, for the eventuality when you consider to increase VRam: for systems equipped with 8GB of RAM or more, set the UMA buffer size to 1GB or 2GB. Higher values will impact negatively your system.
AMD advised this, Valve used 1GB to ensure system stability, but now some smart kids know better and decided to increase VRam to 4GB forgetting about consequences about system. That amount is inaccessible for RAM. Less RAM, slow system performance. It doesn’t matter if you have 10GB Vram if system is slow in operating because of lack of RAM.
https://www.amd.com/en/support/kb/faq/pa-280

The VRAM is useful to increase it only in Windows OS and only with some games.

Don’t increase VRAM from 1GB to 4GB in Steam Deck Bios – UMA Frame buffer size | biggest mistake
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