Can a 12 speed Shimano micro spline cassette be used with SRAM Eagle 12 speed components?

SRAM and Shimano 12 speed are cross compatible. The pull ratio is slightly off (offhand I believe it’s 1.76 for SRAM vs 1.7 for Shimano), but it seems to work fine in the real world.

To get the nice Shimano “Hyperglide+” shifting, you would need both a Shimano cassette and chain. It would shift without it, just not as well.

Of course, you cannot use SRAM XD cassettes on a Shimano MicroSpline freehub body or vice versa.