The F-15E Strike Eagle is a different, significantly heavier and higher payload was produced by a separate, later project abd competition from the original air-to-air F-15 (its competitor was thr F-16XL, which would have been the F-16E/F if selected.)
And the F-15EX Eagle II is an even newer aircraft.
Same with the F-16, which started life as a skunkworks project that prioritized dogfighting but is today heavily used for close air support and bombing.
While the skunkworks project and even the initial government Lightweight Fighter project had an air-to-air dogfighting focus, the program under which the F-16 development was conpleted and it was eventually purchased was for a multirole fighter, that wasn't a post-purchase usage evolution.
