Cameras and lenses can come and go. You seem to enjoy collecting (or at least shopping and acquiring), so why not thin the herd? Gaps that reappear in what you actually need to shoot with can be filled, and that'll be fun.
You said you'd keep the X100V, plus "At the moment I am thinking about keeping the X-T3 with the Laowa 9mm, Fuji 16 f1.4, Fuji 56 f1.2, Fuji 90mm f2, Fuji 16-80mm, Mitakon 35mm, and Voigtlander 58mm f1.4 (just for the fun of manual focusing)."
Since you asked about a minimalist setup, maybe try out the classic news shooter's lineup of XT-3 + 16mm + X100V-23mm + 56mm. In 35mm terms, two bodies plus 24 + 35 + 85. An ENORMOUS number of photos have been shot with that kind of kit, often also featuring something like your 90mm for a little more reach. (Personally, I'm still bummed that Fuji never made the 120mm they'd planned.)
Have fun! Shoot more, carry less! 😉
