Hello again; I kept thinking about this, because I had something similar in the days I was forced to use Windows at work (TextEditorAnywhere), and decided I missed it too much on GNU/Linux not to figure something out.
I call it vixf ($VISUAL X11 field). It's supposed to be called via hotkey from a window manager or sxhkd. Screencast attached.
It seems to install with pipx. On GNU/Linux, you need to install xclip(1) too.
https://pypi.org/project/vixf/
https://dev.sanctum.geek.nz/cgit/vixf.git/tree/?h=v0.0.1
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