PLAAF AWACS have all but been confirmed to be able to detect stealths at extended ranges.
I think we need to specifically reiterate this point.
AWACS (and most observation radars in general) work in C or L bands.
While stealth fighters still have small signatures in those bands, much of their fine finish(RAM, toothing, etc) is out of equation at this point, as it is literally too small to matter. Thus, while really old AWACS still can struggle (they struggle with anything sub-meter in the first place), anything more adequate will see them at
reasonably reduced range - simply because it's a model threat since 1990s.
And while they aren't
pinpoint accurate - come on, those aren't metric radars(and to be absolutely frank - even those are accurate enough for 3 out of 4 examples below, especially if we don't care about target altitude).
C/L bands are sufficient to warn of a threat and have a S/A track. Reasonable track, when we speak AESA AWACS, but really just properly updated digital signal processing&operator interface is already a huge jump.
Or to throw in an ARH weapon, which can scan sufficient volume of air
on their own. NIFC-CA does exactly that, for example.
Yes, there is a chance to miss a shot this way. it's still a shot with chances of success.
Or cue fighters' ESAs through a data link, to focus their X-bands in narrow beams and brutforce detection & weapon lock at a BVR range.
Or setup an ambush (air tactics aren't as simple as 'stealth aircraft ambush non-stealth', period. Non-stealth a/c can perfectly ambush others, including stealths, too).
Does it mean 'stealth doesn't matter where there is sufficient LF coverage'?
Well, of course no. Stealth fighters maintain a major advantage even w/o their original freedom - we can say that in effect they're permanently protected by rather effective
and at the same time silent jamming (and real jamming, especially off platform, hides them more effectively still); they also benefit
more from all the same old tricks (flying against terrain background, for example).
But as a rule of thumb, modern fighter stealth (i.e. excluding b-2 and especially b-21) lost a lot of its 144:1 magic, which really mostly worked against a/craft of pre-stealth world.
p.s. also about 144:1. it's often understood as stealth v non-stealth advantage, when it's much more of a later aircraft v earlier aircraft one.
F-15 raked its kill ratio while being several times brighter than mig-21s it was killing.
New russian flankers do one-sided killing literally against the ~same platform in ukrainian service...just in a sufficiently outdated package.
By the way - in both cases older side managed to force WVRs on multiple occasions. It didn't magically save them.