While true, I found myself mildly irked by the KDE emoji picker at times. On Windows, you focus an input, press Super+., and then can click any character and it immediately inputs so I can type out 🫵🍽️🤔 easily. On KDE it only copies the character, so the flow is (if I remember right) Super+., click a character, focus the input, paste, Super+., click a character, focus the input, paste....

I've found most Linux clipboard managers share the same issue of having to leave the text flow to copy an input and paste it again. Basically they are treated as separate apps rather than popups.