Might be better to ask on ergomechkeyboards@lemmy.world
If that’s how you refer to communities on here hahaha. I just swapped from basically a TKL down to a Cheapino which is 3x5 with 3 keys on the thumb. It was a really steep learning curve but tbh I only really use 4 of the 6 thumb keys so if you want to go down to 34 keys I say go for it. It will be more difficult to transition though.