I have gravel tires from 28-37mm. For me at 190# I like 35’s best. Wider are the deluxe fat ride but definitely slower to accelerate & climb. 32’s feel fast and I’ve raced on them twice. Conditions vary so much over 50+ miles that I doubt I’ll do that again. I run tubes because I regularly switch tires between CX, gravel & city. I have no problem running a 35mm in front at 32psi. FWIW: Last CX race I ran MXP clinchers (33MM) at 30/44 with tubes. Misjudged low barrier and stair hops several times but no rim damage or pinch flats. I’ve noticed more rim damage on others bikes in the last year or two from low psi but because fewer people rim brake, they don’t notice it themselves.

On MTB (1.9"-2.3”) I like tubeless. On road I don’t. Gravel is right in the middle.