Installing HP Device Manager in Linux Mint 20.1

I've just moved, and nothing is working right. I have built-in wifi and haven't been able to connect with it. I can't get HP Device Manager back on my computer (for some reason it's reverted to something earlier). So, I need to get everything back to where it was. HP doesn't support Linux, I understand, and it was because someone recommended HP for Linux, that I bought the HP Deskjet Plus 4100. Am I stuck with hardwiring my printers? Surely not.

Thanks!