Hi sifus, I have a lot of questions to ask.

Been using windows and hp loyally for a decade, but I think its time for me to migrate. I got my eye on the dell xps13 and macbook air m1. I'm leaning towards the mac, but I've never used one in my life. How hard is it migrating to mac os? I have a wd external drive, do I need to format it for the mac to read it? Or just plug and go? What about transferring files from my android phone to the mac, as breezy and easy as windows or any hurdle to jump through first?

Apple or dell? My main preference is light and good typing experience. I've tried the huawei matebook, levono yoga slim, not so keen on them. Supposedly microsoft surface can be challenging for repair, is that true?

Also, is mac expensive for repairs once the warranty runs out? Oh one more thing, macbook air has no fan and seller told me it didnt matter because m1 is that efficient. How true is that? My room is not airconditioned and gets pretty hot sometimes, and there are times when i work for a day straight. Can macbook air with no fan tahan that?

Any advise is much appreciated, thanks.