You cant

There is no official whatsapp app for Linux and all of the apps on the store rely on whatsapp web

Next step: try Arch Linux

Complex and recent games run on Linux these days.

Not allowing run a game in Linux is, nowadays, a choice from its developer rather then a causality. Proton is a really powerful tool!

If a game don’t run in Linux, via Proton or natively, that’s dev issue that actively blocked Linux.