From what I understand the semi-large forked coins like Bitcoin Cash, Bitcoin SV, were given to holders at the time of the snapshot. However the smaller ones that you never heard of like Bitcoin Gold or Micro Bitcoin or whatever, those werent distributed because it was just a hassle and they werent worth much to begin with.

Also keep in mind that each of these forks was a huge strain on space. Every fork was basically the same bitcoin blockchain cloned so it took up hundreds of Gigs just for a forked coin which is worth a few pennies each. And they had to keep all those forks in sync which was tough when the nodes were unrealiable.