modern AA replacement to MSAA

Unity Engine
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1

MSAA is almost invisible in URP, because it does not fall under the camera’s AA options - it is hidden in the URP settings asset. Anyway it can not be supported in all rendering paths and seems not to run after post process effects (because it works while rendering) which I need.

I like it for some things because the quality is so good, but is MSAA just an old technique now & what is the closest replacement for low-motion environments (not high speed FPS/racer, motion blur, TAA situations)?

Is SMAA a better performing approximation of the same?

FXAA I find to be terrible quality while TAA just blurs everything!

2

MSAA has pros and cons. It can be more expensive than other methods and it only resolves aliasing at polygons’ edges, not texture aliasing etc…
If you have performances to spare the best is to use MSAA together with a post-process AA like SMAA to get the best of both worlds.
SMAA is not a direct replacement.