cyclezen nailed it. 650b x 32mm will be a mess on this bike. BB would be way too low and the handling would likely get weird. I would highly recommend getting a cheap set of 700c wheels, some nice 32mm road tires (GP5000's) and you can swap over your existing rotors and cassette. Shimano's GRX wheelset seems perfect for this application - they're reasonably lightweight, tubeless ready (you can run tubes as well) and can be found online for $375. The 21.6mm internal/26mm external width would work great with 32mm road tires.
Anecdotally, I've been without a true road bike for 18 months or so, and have been running my CX bike with 28mm GP5000 (700c size). I wouldn't do crits or road racing on this setup, but it's been fine for both solo and faster group road rides.