if you do something like 

/spreadplayers ~ ~ 1 1000000 true @e[type=!player]

an error occurs and the game crashes
expected outcome:
error appears in command chat saying "too big of number idiot make it smaller" or something like that
actual outcome:
the error appears but a second after the game crashes and you have to wait ~7 minutes just to get back onto the world (thats just my pc)

could somebody with more coding knowledge think of a fix please?

Seems to be semi-fixed in 22w18a. Doesn't crash, just lingers around for a very long amount of time.

It seems to be completely fixed in 1.20.2