It is not a big deal to check your roller bag or to put your bag under the seat
Maybe I’m one in a million passengers, but I’ve never had to use the overhead bin. If the flight attendant is asking for volunteers to check your roller bags, that means there is no room. You’re delaying the whole flight by ignoring them.
And if your bag can fit under the seat in front of you, that’s where it should go. You’ll still have plenty of leg room if you push it all the way in. #conversation