As mentioned the upcoming version of Orion will be the last for Mojave - Catalina and there is a request (I believe accepted) to fix critical bugs before development completely stops for the versions of Orion for those OS. Here are a few regressions in recent RC (not always sure under which version the issue first started):
-Can't access LinkedIn's Messages section -- just blanks and never responds [Mojave - Monterey]
-Can't login to LinkedIn at all - I get an unexpected error occurred [Mojave]
-Opening links in other apps (e.g. Mail) fails [Mojave - Catalina]
I reported the first one several months ago: https://orionfeedback.org/d/13552-linkedin-unusable-on-latest-rc-for-older-macos
I now can't test that issue with RC 1.0.7 on Mojave due to the second bug though not sure it exactly started with RC 1.0.7.
I now see that the 3rd one has been an issue since at least Version 1.0.6 (145.2-rc).
I expect accessing LinkedIn from Orion to work like it did back in ~ March (as well as it still does from Orion for Sonoma+). Similarly, opening links from Mail on Mojave/Catalina worked fine at least a few releases ago.
Version 1.0.7
Mojave (10.14)