Definitely! The only “good” 3rd-party themes are the ones from Jomada (Edna, Moe, Itchy, etc.) and from Vinceliuice (Graphite, Canta, Layan, etc.).
Those are well thought out, coherent and look professional.
If you scroll through the top ones, then you almost exclusively find ones that got their last update years ago, and now look extremely incoherent or buggy.
And even if you find newer ones, then they often lack the polish.
Man, it just sucks…
But hey, maybe there is just not that much demand anymore, because the defaults look great nowadays?