The ones with "non replaceable" batteries still has a longer battery life after a battery swap, it just requires a screwdriver and a couple of brain cells.
No, it requires adhesive-removing chemicals, IPA as a bare minimum, dental floss, plastic prying tools, and some idea of battery safety (so you don't turn it into a fireball by trying to extract it aggressively with a screwdriver).
Genuinely struggled to extract a Switch 1 battery from it's adhesive, and I'm usually perfectly comfortable disassembling+reassembling that sort of thing.
The use of adhesives, in excessive quantity/strength, on fragile/dangerous batteries is the problem, not the screwdriver or brain cells.
