By using external mounted pods and weapons as the only way the aircraft will always have a larger radar profile
On the other hand, it gets to be readily adaptable, by definition obtains more external stores, and carries oversized payloads w/o any issues.
Since it is designed to be seen, such aircraft is likely to be more survivable when it's the case(it's the hypothesis behind its EW suite, after all).
Finally, while not a true stealth, some of its aspects(and empty or near-empty configuration) may be decently stealthy, maybe even within realm of true stealth aircraft. Egressing from the battlefield, or, say, ambushes from low altitude using outrageously long burn of meteors come to mind.
Considering future developments(laser weapons, hypersonics, oversized AAms and loyal wingmen) - KFX+F-35 sounds as a rather equal partnership. More so than upgraded/updated 4th gens, which may have much more raw power than KFX, but their design heritage ultimately dates back to 1960-1980s.
This, on the other hand, is quite fresh, post-iPhone
era program.
F-35 was already fixed when Koreans were finishing their assessments.