100 is not enough. Especially that clicks are tracked as well. Saving is automatic with big gaps in between and short terms changes are easily missed and not always reverting to a version is the right thing, esp if it’s something that happens within 5 mins.
Please consider increasing the max, or allow to set a limit.
Alternatively, auto saving more often, would be beneficial and may solve your undo limit restriction.
Time is wasted on going back 100 steps, realising its not enough, going back forward and reworking what was intended to be fixed in the first place.