My wife and I flew from Frankfort to Budapest on an A321 Neo back in 2019. Worst commercial plane I’ve ever been on. And I’ve flown on Ford Tri-Motors several times in South American back in the ‘60s.
Tiny seats, narrow aisles, and not much overhead storage. If you were in an aisle seat and larger than a 5-year-old, you were going to be constantly bumped by anybody going past. And this included most people that were shuffling sideways.
Now the trip over in an A380 and back in a 787 were great.
Most people don’t know that the aircraft manufacture does not dictate the seating. Most airlines buy them from 3rd party - so cramped space in a modern airliner is a product of the airline, not the aircraft manufacturer.