Only mt7621 has official hw offload AFAIK
There is also ipq806x like netgear r7800 with community builds with NSS (hw offload) but I'm unsure how stable this is
Exactly, if you want higher clock speed than the mtk mips then it’s Qualcomm 80xx with NSS and dealing with how early it is in the dev cycle.
Or go with a low power x64 router and separate access point and have the horsepower to route anything without offloading and the freedom to use sqm etc as you see fit.