Man, that looks like it's been wrecked. There's tape-off marks on the fog bezels, the front sensor looks aftermarket and poorly installed.
My 2007 took a hard hit in the front and it was never right again, looked like yours. The end caps are non-adjustable, they are part of the bumper assembly. How it looks is a function of bumper alignment, fender alignment and front fascia alignment. On my 2007 the body shop used aftermarket and nothing could be ligned up due to the poor quality of the parts. My 2021 has perfect alignment and gaps. Try to "align" just the bumper ends will make gaps show up elsewhere.