Scaling issue (4k display & Linux)

I’m setting up a Linux box at home (Mint 22) and just downloaded and unpacked Knime 5.4. But on my 4k display all the text etc. looks tiny to the point of being unreadable.

There’s an earlier thread (Scaling issue with KNIME on high resolution displays) addressing the exact same problem, but the suggested fix of putting

-Dorg.knime.ui.zoomfactor=2.0

in the Knime.ini file doesn’t seem to work for me. There is also a reference to a ticket at the end of that thread indicating a fix in 5.3.

Would appreciate any troubleshooting tips.