I haven't owned the 15" MBA, just tried it a couple of times at the store, but I upgraded from an M1 MacBook Air to a 14" M1 Pro MacBook Pro, and also was fortunate enough to get a 16" version of the same model from my employer. I am surprised by how much I appreciate the extra ports, nicer screen, and presence of fans for when I'm gaming or video/photo editing.
But if you're just using Office, answering emails, using Safari, the standard laptop things, you really don't need to move up to that beefy of a machine. I was blown away by both the 13" and 15" models in person and I bet you will be too. To be honest with you though, the harder choice for me personally would be if there were some insane deal on the 14" M1 Pro. That is my absolute favorite Mac of all time--like the perfect cross between the 13" Air and the 16" Pro.
But if you're just using Office, answering emails, using Safari, the standard laptop things, you really don't need to move up to that beefy of a machine. I was blown away by both the 13" and 15" models in person and I bet you will be too. To be honest with you though, the harder choice for me personally would be if there were some insane deal on the 14" M1 Pro. That is my absolute favorite Mac of all time--like the perfect cross between the 13" Air and the 16" Pro.