@cjsmall This using a Mint 22 VM / Rawtherapee (RT) 5.10 (installed from repo)
It does not surprise me that the 3.2 appimage does not find the RT installation. An appimage is to a certain extent sandboxed. The appimage will contain the two RAW plugins There is nothing that you can add if RT is not compatible.
You can run an appimage with the --verbose switch in a terminal and you can see the Gimp side is loaded. As you found it does not show in Edit -> Preferences.
Depending on your linux - you might get a Gimp 3.2 from a PPA and that might work. (..but not an Xubuntu 22.04 you were using in an earlier post.)
Same as your findings, a regular Gimp 3.0.6 (from PPA) install, works ok, although seems painfully slow ransferring back to Gimp.
It does not surprise me that the 3.2 appimage does not find the RT installation. An appimage is to a certain extent sandboxed. The appimage will contain the two RAW plugins There is nothing that you can add if RT is not compatible.
You can run an appimage with the --verbose switch in a terminal and you can see the Gimp side is loaded. As you found it does not show in Edit -> Preferences.
Depending on your linux - you might get a Gimp 3.2 from a PPA and that might work. (..but not an Xubuntu 22.04 you were using in an earlier post.)
Same as your findings, a regular Gimp 3.0.6 (from PPA) install, works ok, although seems painfully slow ransferring back to Gimp.