I’d like to make a suggestion for the developers and that is under the context of a network enable multi site installation, that the “acf_version” tracking option is moved to the new “wp_blogmeta” table when available, meaning it could be queried as a single statement for all sites.
https://make.wordpress.org/core/2019/01/28/multisite-support-for-site-metadata-in-5-1/
Does this make sense?
