Size matters when asking about bags. I use a 55L Osprey for travel to Switzerland that is just above the limit for size on a plane but I force it to work. I love it because I can have options for a longer trip and I e got backpacking options.

That same bag is a nightmare if it goes a bit too heavy. It becomes unwieldy and causes bruising due to my ability to overload it with huge quantities of weight . So be careful on what you ask for, you may have a perfect bag for different uses but you can use them in bad ways which makes usage suffer.

Lessons learned for myself. Go smaller, pack lighter=happier me.