The flowchart [1] looks wrong to me. The website says load jQuery v3.3.1 and LocalCDN loads jQuery v3.4.1 instead while removing integrity checks. LocalCDN seems to assume that it knows better than the website which version of a library works for that site. It may be harmless for certain library versions, but could wreak havoc for others. Sorry, this is not responsible behavior from an extension.
I looked at the wiki and found this: [2]
> Can I check if LocalCDN really works?
> Yes you can
Really??? This sounds like a snarky answer instead of providing some ways for a user to check that it works.
I think I'll stick with Decentraleyes for now.
[1]: https://www.localcdn.org/img/replacement.png
[2]: https://codeberg.org/nobody/LocalCDN/wiki#user-content-11-ca...