Another switcher here. I want to confirm the points made about Fuji AF, it's way behind even the M50 I came from. That said I do not regret switching, I wanted something small and light at a reasonable price and the X-S10, outside of autofocus, was a measurable upgrade in every regard. If Canon takes crop sensor cameras seriously again at some point in the future I'd gladly reconsider them, but I wasn't impressed with the R7/R10 releases. Hopefully they go a bit more up the market and also get the size closer to the M line and what Fuji is releasing.
Advantages I've found with Fuji are a lack of feature crippling, products from the lower end of the stack tend to have the same specs and capabilities as the top of the stack, lacking only things like weather sealing and perhaps some controls. This lets you buy in at a reasonable price and get 90% of what you'd get at the top of the line. I don't suffer at all having bought a X-S10 vs a X-T4, and that's really nice. For me, the manual control options were a drawback, I tried to use them initially for several months with another Fuji camera I was able to borrow, but when the X-S10 was released I jumped to get that PSAM dial and I don't regret it. I get that a lot of photographers enjoy the classic controls, but for me it was just unnecessary simulation of a past that I had no connection to (I was never a film photographer).
I'm mixed on the lenses. As noted by others, Fuji users can be utterly fanatical about their lens options. And compared to Canon's crop options, Fuji has a much wider selection covering almost everything you could want to do. But many of them are first generation X mount and it really shows. Here is what I have and my thoughts -
XF16mmF1.4: Noticeably softer than the Sigma 16mm I used with my M50 at any aperture. Really do not enjoy it.
XF35mmF1.4: Coming from the excellent EF-M 32mm f/1.4 this lens was a disappointment all around. Slow and not terribly sharp. That said, the brand new XF33mmF1.4 is extremely nice, I do not own it yet but it is likely superior to Canon's offering.
XF56mmF1.2: This is a fantastic lens. It became my favorite almost immediately. For X mount it is the one that is on my camera the most, just as the 32mm was practically glued to my M50.
XF90mmF2: Also excellent, and with no EF-M equivalent unless you adapt an EF lens. Really nice for portraits and fairly fast focusing with more accuracy likely due to the LM AF mechanism.
XF16-80mm: This zoom is alright, image quality is 'okay' but not exceptional. Better than the kit lens you get with a M camera, but I prefer to just use primes in that range when possible.
XF55-200mm: Again it's okay, I think the EF-M 55-200 is superior. That said the new XF70-300mm is getting excellent reviews and looks nicer than the EF-M at all the crossover focal lengths, but I haven't tried it myself yet.
A real mixed bag IMO. The positive is that Fuji is aggressively upgrading the lineup both in terms of image quality and autofocus performance. The new 18/23/33 are getting fantastic reviews and apparently dramatically improve autofocus performance in the real world even on the existing bodies. I'll be taking advantage of Fuji fans love of the 16/35 to upgrade to the 18/33. There are no previews of those lenses yet on the X-H2S but I can't wait to see the results. The older lenses are lauded by Fuji fans for their supposed 'character' but I really am not sold on that, I value accuracy over distortion. When I want 'character' I'll grab my Helios.
I currently view the Fuji ecosystem as that bridge that is missing in Canon's current lineup between entry level and professional cameras, with many Fuji bodies being on par with at least the mid-range pro cameras (when paired with the right lenses and with the caveat about AF). The X-H2S has me excited, although it's likely not a camera I'll buy due to it's size and price, but given how Fuji tends to rapidly trickle down their top tier tech, I expect a nice upgrade to my X-S10 at some point in the next couple years that likely brings AF into the upper tier even if it's not best in class. Which is good enough for me.
I also did splurge on a GFX 100S GF110mmF2 and holy crap. Nothing I've seen on the market touches that for image quality and it's honestly a joy to shoot. Out of reach and completely unjustifiable in most cases however.