Yes, of the languages I know, all the LLM's get consistently "stupider" as the languages get "smaller" (in terms of available data on the net). Even if the LLM can translate fairly well into the language and speak in the language, the reasoning skills are simply not as good as in English, and progressively worse as languages get smaller, and frequency of hallucinations increases substantially.
Uncommonly useful: I have a file with two functions that I want to not just see side-by-side, but with a diff.
`C-x 4 c' runs the command clone-indirect-buffer-other-window
Now you can narrow both buffers to the two different functions (mark and C-x n n) and do M-x ediff-buffers to get a diff
since C-x o is a bit much, but I don't feel any need for all these extra packages.
But it's nice to have such an in-depth reference, Karthik's articles are always very educational and interesting.