Valve's Proton (so Wine + DXVK + some other additions) revolutionized gaming on Linux. I play games both for fun and work, and for a solid 3+ years now, gaming on Linux has been an "it just works" experience for me, and should be for most games that don't use kernel-level anticheat.
I saw it on SVT a few hours ago. DN and Expressen have also reported. The details about what exactly it is that got leaked are unclear (some report it's basically the code and certs responsible for BankID SSO) but this is certainly being reported domestically.