Our D&D campaign (which had run since the beginning of 5E) went on hiatus due to Covid, and has yet to resume. So I guess about 2.5 years. We attempted to do a two-part wrap-up this summer, but it didn't work out for various reasons. May try again this fall. Discussions of moving online haven't really gone anywhere, despite bursts of interest from various members of the group. (I'm not enthusiastic about the idea, myself, but I'd certainly participate if someone else did the heavy lifting.)