Certainly not all of them. The issue is that a lot of them I played on lithuanian flash sites before I knew english, so I mostly just know them by whatever localized names that were made up (which only sometimes matched the originals) which makes it a lot harder to search for them, since I first have to find the english name for them lol. If I remember the name at all, and im not just searching by the description of what I remember the game being. Funnily enough some games that I do know the names of and I can easily find elsewhere also don't come up on the flashpoint archive
And some of them also were never in english to begin with and were just niche games made in lithuanian.. I did search for those as well, but I got 0 results
So yeah :3. I think some of them might just be lost to time ¯\_(ツ)_/¯