Beyond egui/Iced/Slint, I'd say the "ones to watch" are:
* Freya
* Floem
* Vizia
I think all three of those offer virtualized lists.
Dioxus Native, the non-webview version of Dioxus is also nearing readiness.
Except the above virtualised lists, another case I hit was layered images (sprites for example). Not very hard to write my own, sure, but it’d be nice to have that out of the box as in eg. egui