murbert Check in Plasma, you can change both there.
Ah, I understand now. As it happens, I do prefer the Budgie version on both my TV and laptop, so that's one I won't need to worry about. Thanks!
I haven't checked to see whether Budgie increases the size of the application icons in the workspace switcher applet when the bottom panel is made bigger. That wasn't exactly a showstopper on my TV (viewing from across the living room), but I was pleased with the way Plasma did it. I'll check that on Budgie today.
EDIT: Correction, neither DE changes the icon sizes in the workspace switcher. I'd mis-remembered. Plasma does scale them in the task switcher, though, and Budgie does not. That's what I remembered.