One of the recent pre-release Bionic images as well as LibreELEC both support high resolutions and higher refresh rates than 60hz. However, the Bionic image at 2k 144hz makes for a poor Desktop experience (I have a similar monitor - the SOC can't pull it off), but LibreELEC works great.
Sorry, thought I was posting in the Rock64 section.
Sorry, thought I was posting in the Rock64 section.