Today I found out that Linux kernel v6.14 is released, which has NTSync shipped with it.
NTsync was actually released in the past as well, but broken... They fixed it in Linux kernel 6.14 now.
For those using Wine on Linux to play Windows games, this is great news! The new NTSync "driver" improves support for Windows locking mechanisms, allowing applications and games to handle higher workloads more efficiently under Wine.
I use Mainline Linux in order to install the latest Linux kernel (maybe another TIL for you?).
Anyhow, have fun! Some games can have over 670% performance improvements on FPS. Like DiRT 3 for example. That is crazy right?
This doesn't apply to Proton or any Wine with Fsync patches applied, which is being used by tools like Lutris, Heroic Games Launcher etc.
In some of those tools you can often select which kind of Wine you want to use. Like the vanilla Wine or any custom build with Fsync. But good that you mention it.
WineGUI for example will always just use the preinstalled Wine binary.