CaffeineAddict
Well-Known Member
Plugin and extension is same but KDE plugins is not the same thing as gnome extensions.Unless you find a major difference between "extensions" and "plugins" (I don't), then KDE certainly does have Extensions.
The following
99% of users will not need or use them in KDE, but gnome is hard to use without extensions, gnome extensions have much greater impact on users than kde extensions.
Also didn't check but KDE plugins are likely maintained by kde devs, so it's unlikely they would break something.

