juampiursic I think there might've been a misunderstanding here. When it comes to GNOME Zach is the current maintainer (though Josh is already helping out, or has offered helping with the big GNOME updates in the future). What I probably said was that Evan and Josh are more familiar than I with the problems GNOME 44 poses for Budgie in particular.
AFAIK there is no plan to heavily modify/patch GNOME like we did in the past (e.g. to remove libhandy), but there will of course still be patches to fix issues with it (e.g. mutter issues that affect Budgie).
libadwaita and GTK4 are of course here to stay, out of necessity, but there might be an effort to make them more palatable on other desktops (e.g. theming-wise)