Hi ive been getting regular crashes too since the 2.7 update....my system specs are i9 10900 KF @5.3ghz , 64 gig ram, and a slightly overclocked RTX 3090 FE....I usually have most settings on high/ultra in 4k and it looks amazing and runs very smooth..
The thing is it never crashes during the actual gameplay/mission flying part of the sim, only when i end the flying session and go back into the menus, its at some point after then it often crashes...it never crashes in the menus before loading a mission, only after ive flown one!...so i doubt its related to anything to do with hardware...its a software issue as all my other sims, including Il-2 Sturmovik battles, MSFS 2020, rise of flight and a heap load of latest AAA games....all run fine with zero issues or crashes.
DCS 2.7 crashes, but its a gentle (ie software error) crash..not a blue screen of death hardware crash.