If it's for your kids, just get whatever they're accustomed to.
And your school should be utilizing certain sites for all video usage, which shouldn't make the type of computer you have matter much at all.
We're handing out chromebooks to all our students and utilizing Google Meet, Flipgrid, and Screencastify for our live lessons, recordings, and screen displaying.
For me personally, I guess I buy a non-Apple computer every 6 years or so...one that's around $600. I don't do anything wacky with it, I just want it to work.