I have the M1 MacBook Pro with MagSafe and I still charge it via USB C simply because I can't be bothered to carry around another cable when all of my other peripherals are USB C.
That's interesting, I don't use USB A at all whatsoever anymore, and frankly I don't use the SD card reader or HDMI port either. Maybe I should just get a MacBook Air 15" but I do like the 120 hz screen of the Pro models, that's the main reason I'm holding out.