Screenshots look very nice, unfortunately the Linux build segfaults somewhere deep in GDScriptFunction::call inside some initial thread spawn, after creating the main window but before rendering anything. Tested on Ubuntu 24.04.2.
Thank you very much for the new version. Sadly it also crashed, but I tried the official RpgInABox demo, and that crashes with the same error (but after the title screen). This apparently is an issue with the engine itself, I will see if I can report it there.