Totally agree. While I love a good Webtoon or manhwa, manga puts me at a loss for words. I only have a small manga section in my local bookstore, and even that is seeing more manhwa and Webtoons come in by the week. It started with a couple super popular bl's, like cherry blossoms, then it branched into titles like marriage of convenience.
But almost everything that I've read that I desperately wanted a physical copy of has been manga. Fragrant flower, windbreaker, haikyuu, horimiya, Sasaki to Miyano, apothecary diaries, assassination classroom, one piece. All manga, all amazing.
Right? I've been using this site since 2016 and the difference is hunge! Back then, everything was manga. Then, once in a while you would instantly become crazy popular despite not being too good honestly. (Like BJ Alex and cherry blossoms etc...) mainly because of the colored smut and more chapters....then of course, the isekai ones started appearing (which I love, I won't lie) and after that more diversity started spreading thankfully but the manga market got flooded and now there aren't nearly as much translations it seems. What a bummer!

I'm seeing a huge decline in manga popularity in the face of Webtoons and manhwa. Although I like both but I feel like it's such a shame. Manga has a vibe and depth that just can't be found in webtoons. The plots are also, often, much more interesting and human. Actually, most of my "unforgettables" are manga.