Lightmap resolution is way too low to get anything of decent quality. TBH though I’m not entirely sure what I’m even looking at here.
Yes, setting them to moveable will prevent them from generating baked lighting.
Trying to build surface lightmaps for foliage is a waste of time, memory, and electricity. Anything smaller than a tree should be set to moveable, trees should be set to static but their lightmap type should be force volumetric. For good measure I would just straight up delete the lightmap UV channel too but that’s your call.