Except for the 787. If memory is correct, Boeing dictates what brand / models of seat is used in the 787 (something rather unusual). I can try and find a source if needed, but I’m pretty sure I heard that from a reliable source.
I had an economy comfort seat on a KLM 787 recently and the buttons were affixed to the inside of the seat arm at leg level, and not recessed. I kept turning on the overhead light with my leg all through the night. Infuriatingly poor design. A few mm's more recess would likely have made it much harder to accidentally press.
Overall quite a negative first 787 experience...
Next time I'll avoid a bulkhead seat in any case.
Seat manufacturers produce seats for both Boeing and Airbus aircraft and aside from brackets, they're identical. So claiming that one manufacturer is more comfortable than the other is a little odd, given the market realities in the industry.