How can I disable all of the Kinsta MU plugins in my local environment? I tried simply deleting all of them, but that resulted in a WP whitescreen error.
Hello @juliaset 
You should be able to do so just be renaming the mu-plugins directory to i.e. mu-plugins.old.
That should do the trick 
Kind regards
Thank you! That worked.
Anytime 
I’m glad I could help.
Kind regards!