Good idea running re : lpstat -t on Mint to garner information to help figure out why Mint works and Tumbleweed does not.
I note if i run that command on my Leap-15.6 laptop with a networked HP printer I get:
oldcpu@lenovo:~> lpstat -t
scheduler is running
no system default destination
device for CUPS-PDF: cups-pdf:/
device for DeskJet_2600: hp:/net/DeskJet_2600_series?ip=192.168.31.46
CUPS-PDF accepting requests since Tue 02 Jul 2024 12:45:06 PM +07
DeskJet_2600 accepting requests since Tue 10 Jun 2025 11:48:23 AM +07
printer CUPS-PDF is idle. enabled since Tue 02 Jul 2024 12:45:06 PM +07
printer DeskJet_2600 is idle. enabled since Tue 10 Jun 2025 11:48:23 AM +07
oldcpu@lenovo:~>
Of interest is this line in my PC setup:
device for DeskJet_2600: hp:/net/DeskJet_2600_series?ip=192.168.31.46
That (hp:/net/...) on my PC suggests CUPS is communicating via HP’s JetDirect or proprietary protocol (HPLIP) and not IPP Everywhere.
I speculate that for IPP-Everywhere (if on Linux Mint) would show a URI like:
ipp://192.168.31.46/ipp/print
or
http://192.168.31.46:631/ipp/print
If this proves correct, I agree the OP should consider the "driverless printing approach" with IPP-EVERYWHERE … but with the details requested not being provided, it is difficult to provide more targeted support.
I spent some time researching this - and given my diagnostic suggestions were not followed up (where I do not think they were such bad suggestions to be ignored) , it is making me think my time is better spent elsewhere … < sigh > … but that I guess is one of the aspect that always accompanies one who tries to support , and I need to resign myself better to that reality.
Again - I wish the OP all the best in finding a solution.