Yes, this is pretty straight forward - your current ring is a “direct mount” meaning ‘no spider’ to mount the chainring on. The Power2Max fits in place of the spider, so you just need a 12sp Eagle ring that fits the P2M.
SRAM uses 3 crank BB mounts- GXP, BB30, and now DUB and 3 different ring to crank 3-bolt (older), 8-bolt, and 8-bolt DUB. The standard 8-bolt and 8-bolt dub look the same, but the dub version is slightly different. The direct mount rings all fit and P2M says their PM fits.
Your bike uses a BSA hole in the frame to mount the BB; those are pretty easy and cheap to swap out if needed, so don’t let that be a consideration.
Note: SRAM’s Rival PM might (should) have a MTB equivalent at some point, that might be a better direction for you at the $250 price point.