I just bit the bullet and went for Ventura, one app failed (FileBot), but reinstalled that, and all now fine..... I will update if there are any glitches. This is on a 2018 Mac mini.
For interest, I have a number of other Macs from 2009 Mini's through 2011, 2012 Mini's and 2008 iMac, various air's and MBP's, all running Monterey (12.6) via OpenCore patcher - occasional minor HD3000 and 4000 Safari graphics issues, but in the main all good (just use Chrome to get round those minor issues) Pretty much everything else works fine, only minor fail is wakeup via Apple Watch with ancient WiFi cards. I await a Ventura version of OCLP, but suspect that may be a little while
ZeN