>>96303809
My first campaign was also the longest: 93 sessions over the course of 101 weeks. Cyberpunk RED that started because of the hype for the Edgerunners anime. After it stopped, we've been playing many other games and systems, mostly short mini-campaigns and one-shots.
Second longest is ~30-sessions-long Dark Heresy 1e campaign (different group).
Third longest is PF2e campaign composed of a ~20-session long quest to kill a vampire and ~5-session-long quest to kill a dragon I count them together because the PCs were the same (same group as the CPR one). Pic rel comes from that campaign, it's a Leshy familiar after too many Final Sacrifices (https://2e.aonprd.com/Spells.aspx?ID=689).

All were online so they may not count according to (you), but I've had fun.