A few years back I bought a networked xerox scanner for that reason - its not ideal and rather outdated, but at that time was pretty much the only thing with a document feeder capable of generating multi page PDFs without having to control it from app or computer.

For your home office, see this article and then pass it along to friends. It just makes everything easier: https://www.theverge.com/23642073/best-printer-2023-brother-laser-wi-fi-its-fine

I've got a Brother AIO printer/scanner, and it has a Linux driver. Even for the scan function.

I can start the brscan service on my Linux machine and then just press the scan to PC button on the scanner and the scans land in ~/brscan/ over the network.

If your scanner works on your phone and you have a Linux desktop, you should be able to drive it from your Linux desktop. The Document Scanner app from the Gnome project (Debian package name: simple-scan) is pretty good.

If your desktop doesn't see the scanner on the network, you can try connecting it by USB and using the ipp-usb program, which publishes it on the local Avahi daemon where Document Scanner will look for it.

Personally, I'd only ever connect it by USB anyway. Network-attached printers/scanners tend to be horribly insecure. Although many of those vulnerabilities can also be exploited through a Linux print/scan server as well, so this isn't an airtight solution either. Really, the best thing you can do for the security of your network is to not have any printers or scanners anywhere near it.