Disable new Site Health screen safely?

I’m not sure if this is what you’re looking for, but defining WP_DISABLE_FATAL_ERROR_HANDLER to true will disable the site health check entirely according to a post about site health check features in 5.1.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)