Mac version of desktop client not supported on Monterey.

[Ana24]

This question was asked previously (years ago) and the answer that worked back then isn't working for me. I have to download this onto my 4 year old's computer (she has an old one because... she's 4!) and I don't want to upgrade a computer. Her school requires Zoom desktop client.
Each time I download, it says it's not supported. I've tried all the work-arounds I can find on the internet so far. Any suggestions are appreciated!