I have a switch lite and its a dream to use. I do have smaller hands and was a bass player so my fingers are fairly flexible but the flat switch doesn’t bother me. The SD is more ergonomic but the weight is an issue. Especially as it slips down in your hands over longer play sessions and I always end up accidentally paying the back buttons so can’t have them mapped, but I don’t struggle with the small switch at all

Yep, if I try playing laid down in bed my arms go dead