The guy is the lead dev of the Budgie desktop environment. Budgie started out kind of reusing components from GNOME, but Strobl has been rather frustrated with GTK and the directions it took with GTK4, for various reasons: https://joshuastrobl.com/2021/09/14/building-an-alternative-ecosystem
(The disclaimer is important, some opinions on what alternative to use changed, but the frustrations with GTK remain.)
The guy is the lead dev of the Budgie desktop environment. Budgie started out kind of reusing components from GNOME, but Strobl has been rather frustrated with GTK and the directions it took with GTK4, for various reasons: https://joshuastrobl.com/2021/09/14/building-an-alternative-ecosystem
(The disclaimer is important, some opinions on what alternative to use changed, but the frustrations with GTK remain.)