Looks like there’s a Sram Apex 1 GXP chainset although it only goes up to 42T (guess I could live with that 2 tooth difference).
A 44/10 top gear on a “Gravel” bike would be enormous! Effectively the same as 50/11 on a road bike, but with 38c tyres instead of 25’s, and offroad too, it would be nigh on impossible to push!
That said, you can get narrow/wide 110BCD rings in a multitude of sizes, all the way up to 54T (for the budding Tony Martin’s) I believe.
Looked at SRAM (Apex) stuff but that seems to be for a PF30 BB and my frame is threaded, I don’t think there’s any adapter that can make that combination work?
All SRAM stuff is available in either a BB30 or a GXP fitment, so you can find one to suit your requirements. That said, Apex isn’t exactly much of an upgrade. I’d either stick with what you have and buy a narrow/wide and a new BB for it, or shell out on Force or Red to get carbon cranks at least.
Worth checking out for sure, their rings are impressive, and though slightly boxier in looks, their cranks come recommended by many.