I don't have a 36B5 but have a friend with a 2019 who fulltimes in it now that their kids are gone.
Both the 26,000 GVWR and the 22,000 GVWR chassis only have 4,000 pounds difference to the GCWR so there is no difference in towing capacity.
My 2020 GT5 34H5 has just under 2,900 pounds of OCCC capacity but I do not know what a 36B5 has.
The 22,000 GVWR chassis with the 22.5" wheels has the widest turning diameter of all. See the attached pic for whether it will make a difference for you. The wheelbase matters.
The 36B5 has two water heaters, one for each bathroom. Similarly, it has a 20,000 BTU propane furnace in the bedroom plus a 35,000 BTU one in the main living area. But it does not have a fireplace. But it does have heated, reclining, massaging power recliners.
The big question is whether you are talking new or used. If used, with the V10 chassis or the V8 chassis?
One thing Forest River did right after our 2020 was built, naturally, was to make the side walls 3" taller. That allowed them to square off the interior ceiling while we have a curved ceiling. It also allowed them to increase the height of the basement compartments 3" and that really helps in the passthrough. I think they claim there is a 25% increase in the basement storage area versus what we have because they also made them deeper and redid the basement compartment doors as well.
As far as support, the Forest River Georgetown management and factory really want happy customers. The dealers, like all dealers, are a real crap shoot.
If you have specific 36B5 questions consider using this forum:
https://www.forestriverforums.com/forums/f16/
Just login with the same email and password as you use here. Both forums are owned by the same company so it will find your account here and ease the sigh up process.
Ray