Just where is the list of FIDE approved clocks? I see many sellers selling dozens  of clocks that claim to be FIDE certified/approved.

Reading FIDE info I see what is required ,  and it mentions approved clocks,  but I cannot find an actual list of what clocks FIDE has actually approved and made available for guidance so as to buy approved clocks without taking the word of some seller.
Here is the document that includes that. See section 5.5.

https://www.fide.com/FIDE/handbook/Standards_of_Chess_Equipment_and_tournament_venue.pdf