As mentioned by others on this forum, I think we’re still at a point where the only practical way to run >2.2" tires on a gravel bike is by using an MTB frameset with a rigid fork.
Here’s my current build: a BXT MTB-066 frame paired with a Ryet fork. Since I do beach racing, my main requirement was to fit 60mm G-One Speed tires. I upgraded from an Airwolf YFM026 (size XL) to this frame in size L for a shorter reach (as reach and stack become more aggressive with a rigid fork if its shorter than a typical MTB suspension fork), more progressive geometry, T47 BB, and the ability to fully internally route the cables.
I’m very happy with how the build turned out—it’s a true do-it-all gravel bike with huge tire clearance. For summer, I swap to a set of 2.35" Thunder Burt tires. The only real downside, as with many MTB frames, is the limited chainring size: with Boost spacing, the largest I can fit is a 40T (the Airwolf was exceptional in that sense with a dropped chainstay and could fit 46T).