So, not all but quite a few "radio pop" artists actually have excellent studio albums, from which the radio singles are basically the worst songs. Like ariana grande had an incredible three-album run with dangerous woman, sweetener, thank u next. Dua Lipa's future nostalgia is another one of these, full of popified funk and dancehall grooves. Bass players love that album. So don't write off bad radio pop without giving the album a listen, there's quite a lot of good music hidden in plain sight.
Other than that some of my favorites from the last approximate decade in no particular order (in format: album - artist) are froot - marina and the diamonds; I feel alive - TOPS; shabrang - sevdaliza; unfortunately, terror jr - terror jr; take me apart - kelela; somewhere in between - verite; dogviolet - laurel; empathogen - willow; expectations - hayley kiyoko; once twice melody - beach house; the fool - ryn weaver.
Pop is hard to define as a genre, particularly it tends to blend into r&b and indie rock so some people might categorize some these differently. And most are "indie pop" but afaict that's just pop by non-famous musicians. That ryn weaver album is probably the best in the list, it's a monster masterpiece that deserves to be more widely known.