My reply is based on using my wife's 2019 MacBook Air (Intel), my new 2021 MacBook M1Pro, and my old (late) 2013 MacBook Pro which I traded in. If you can, wait for the 2022 MacBook Air which almost certainly will return to a MagSafe charge connector over the USB-C one on the current Air's - not a deal breaker, but I'd wait if I could.
I had to replace the keyboard on my 2013 MBP, then the replaced keyboard started acting up. I had to replace the battery also. In spite of this, Apple still accepted it on trade in. Maybe they didn't notice? In any case, I was happy to see it gone.
The keyboards are great on her Air and my M1 Pro. For a small but pleasant computer for email, browsing and video conferencing, the Air is great. I would just wait for the M2 and the MagSafe charging if I could. GL!