I think Unwinder is using signed binaries for his software though I do not know if that applies to the current ongoing beta versions.
Earlier Easy Anti Cheat versions had a whitelist that mostly was per-game and needed updating plus it broke when the software was updated and if the game stopped being supported eventually EAC wouldn’t be compatible with much.
Newer builds use these signatures instead so ReShade, Afterburner and other whitelisted software is always compatible as long as it’s including this signature at least for when it comes to EAC.
Kernel level too so not a easy thing to work around, custom stuff in particular can be really problematic and with everything SpecialK does I’m not expecting it to be granted a whitelist entry.
(ReShade is still a bit iffy and several games now block or even ban users for it anyway even with it’s depth buffer check disabling when network activity is detected.)
Kaldaien mentioned something about opening up the framerate limiter and even potentially discussing with Crosire on getting it used for ReShade which would resolve a majority of these compatibility problems for utilizing just the FPS limit without the render and texture kits and other advanced overrides for why SpecialK itself is unlikely to get whitelisted.