@Kevin Rossi​ @John Lourdu​  - I am also new to databricks setting up environment.

Bu default "all users" have read access to below mentioned catalogs,

my question is - i see an option to revoke read access, is it must have read access to all these catalogs to "all users". Can i revoke will there be any impact?

• main - by default "all users" have read access, i see option to revoke access. if i revoke access will there be any impact.
• samples - by default "all users" have read access, i see option to revoke access. if i revoke access will there be any impact.
• system - by default "all users" have read access, i see option to revoke access. if i revoke access will there be any impact.