My recommendation:
Buy a Brother Laser Printer and get a scanning app (e.g., ScannerPro or similiar) and forget about all your problems.
Scans from my Brother something-or-other with no apps or drivers whatsoever directly to PDF, over Wi-Fi. Perfect.
The only real problem I have with it is that it wants to do a preview scan first if you used the scanner bed last (as opposed to the document feeder) and it freezes it's interface while that's happening.
I have no affiliation with any of the products I've mentioned above, just a user.
[0] https://thegrizzlylabs.com/enterprise/
[1] NB: my use case does not involve a significant amount of scanning high page count documents.