Yep. It's why those Type A and Type B UADFs use WS-10 based engines. Wing sweep angle indicate supersonic performance and in fact intake design and sweep angles indicate >mach 2 performance.
Those heavy UADFs are almost F-16 sized and do not have any life support systems or space dedicated to such things and a pilot. They are essentially stealth fighters that carry similar internal payload to a F-35.
Since playing with Dark Sword UCAV program in the 2010s, it was realised that unmanned platforms could perform dogfighting when computing and autonomous tech allowed these machines to take on those roles. Dark Sword was never inducted like X-43B because computing and networking side did not allow for effective use outside of manned command like we see with Y-9 command aircraft and J-20S. Ground based signals for UADF operating 1000s of km away from ground command station results in a second or more of delay which is unsuitable for A2A.
Dogfighting by manned stealth aircraft absolutely is not a requirement. The purpose is to get autonomous smalls to heavies to do any potential merging.
J-36 and J-50 are more designed to sneak behind those frontlines or at least engage from flanking angles. J-20 and J-35 like F-35 and F-22 are more frontal VLO only and LO from most other angles. It's all a spectrum of advantage but none of these except F-22 are designed to truly do merge gunfight even if J-20 and J-35 can turn well, they are not intended as dogfighters. You still need to turn well to perform BVR well unless you can exploit next generation tailless ULO like J-36 and J-50.
There is a reason PLAAF didn't want guns on J-20 and J-35. Wasted space and weight for 99.9% of the time.
