Sure but it's long standing that Amazon considers stock appreciation as part of your compensation and if it exceeds the targeted appreciation they'll decrease your future compensation so it even outs.
To avoid doing any real math. Assume you get $100 and a targeted appreciation of 15% and the stock appreciated 30%. Then they're going to drop future compensation by $15 to even things out. This may feel unfair but its pretty well stated ahead of time (although who really understands RSUs out of college).
I'm not too sure there's much data on when the stock goes down.
There were some comments that Amazon said they'd make people whole in 2023 [1] but the stock is now above it's pre-2023 levels so if they did nothing people are whole.
It may very well be, stock goes down => oversized refresher; stock goes up => undersized refresher.