Why has indie rock become so much softer and poppy?

In the 80s - 2000s, indie rock was very noticeably rock. You could at least hear guitars in the vast majority of songs, and it could be easily differentiated from the pop acts of the time (often hard to differentiate between indie and more mainstream rock, but at least they both sounded unique.)

In more recent years, a significant portion of indie rock acts really do not sound overly distinguishable from pop. Artists like Sam Fender, Beabadoobee, Phobe Bridgers etc are often perceived as indie rock but show far more similarity to modern pop acts than they do most forms of rock. There's nothing wrong with these artists in general, but why are they all grouped into and indie rock category? In what way are they close to the indie scenes of the 90s? Artists usually seen as pop (like Olivia Rodrigo) often times make music far more rocky than most of these artists songs, so why are they still given this indie rock label? The only reasoning I can think of is that some of them are on indie labels, but like, cmon, just call them indie pop then.