Why does nobody talk about the 'undo' limit in Figma when you're on a roll?

I was working on a big client dashboard in Figma last Thursday, and I must have hit 'command Z' 50 times trying to fix a spacing grid. Suddenly, it just stopped undoing. I was stuck with a messed up layout and had to manually rebuild the last 20 minutes of work. Has anyone else hit this wall, or do you just save a new version every few minutes?