Recommendation for kid chromebook

Sincere apologies for not doing more research, I hope you can help me anyways. I purged Google from my life a few years ago. Now kid’s school is forcing Google Classrooms and Chromebooks down our throats. I now need something that approximates Chromebook for kid’s homework. I don’t want to give them general PC, as they are too young to handle something like that without direct supervision.

I looked at ChromiumOS, but these folks lost their collective minds, I simply do not have time to compile my own build. It looks like FydeOS is the way to go, I am not averse to even paying for patching.

So, I am looking to buy a new device and want to de-Google it as much as possible.

Q1: Is FydeOS with subscription the way to go? Is its UI similar-enough to ChromeOS where teachers/school would likely accept it as “chromebook”?

Q2: Looking at MrChromebox.tech jail breaking a Chromebook all appears to be about the board, but I can’t easily find this info prior to buying. Can someone recommend what to buy to have a hassle free FydeOS install?

Q3: I need to lock down the resulting device to be restricted to school activities only, or kids going to browse YT on it all day. I want to avoid having to police device use by outright preventing non-school use. I would like to avoid fiddling with hosts if possible, are there parental permissions settings on FydeOS?

Thank you!

You should buy a Chromebook.