@cheyrn switch to a different version of Blender. 2.93.5 (and probably 2.93.6), 3.0 and even 3.1 (recent build) seem to be ok…
like I said, I also had this issue on an early 3.1 build, but switching to 3.0 already fixed that and now 3.1 also works as expected.
The jaggedness will be fixed when you Remesh, there just isn’t enough Geometry yet in that area.