Why most of the games doesn't enter on lichess databse?

If they are ranked, they should enter onto it, so it boosts the diversity of games, the amount of them.

Why not?

What games are you talking about?

I have a game which is not in the database or in my insights

Yes, that is Accurate Game, and should be into chess History ( with Medal xD) But I myself think that All bases that are used , are already in Stockfish 16 , and there is no need to put them again into some base, also that can require memory( but maybe not , but whatever) and too Keep them in bases costing Money for renting servers

@sommerswerd

Not sure what "database" you mean - if it is the opening book, I can confirm that the game is missing for some reason!

I have the impression that the masters opening book is incomplete. Some mainlines when you finish the opening have only a few masters games as examples. I can't prove that games are missing, but that just doesn't seem likely. If its a known main line their ought to be hundreds of games, not just a handful. Its unfortunate because a more complete set of games would be a great resource to see how middlegame plans can be pursued from that point onward.

@nadjarostowa

I mean the lichess online games database, but I'm not really concerned about that I would just like it to register in my insights as a game played in a certain opening.