TLDR;
We want to get free users to move to paid plans sooner, by (a) relaxing sharing limits, and (b) reducing the amount of pages you can create to 3 unless you upgrade.
Existing work created prior to 21 April will be unaffected.
Existing work created prior to 21 April will be unaffected.
Remember when products were getting better over time... now their value starts meh (MVP), becomes great (thanks to funding), and then reverts to meh (when finally focusing on unit economics)
For solo people using Figma this shouldn't affect them too much, but naturally those are likely fewer than teams/collaborators.