Ihor, I am happy to help with both ox-latex and ox-beamer with two caveats: my time at certain times of the year is very limited (as you know as there is still an outstanding item for ox-beamer that I have not been able to address since October or longer) and my elisp-fu is sometimes not up to scratch. However, I do have useful LaTeX & beamer expertise which can be useful.
I do monitor the mailing list religiously. :-) eric -- : Eric S Fraga, with org release_9.6.1-199-g7ad779 in Emacs 30.0.50
