In other words, this is something on the server side.
No, hosting services cannot produce this issue.
I suggest asking your hosting to disable canonical urls on the cdn
No, the disabling of the canonical header will produce duplicate content.
https://support.google.com/webmasters/answer/139066?hl=en
or implement some other fix they see fit.
This is a typical issue when WordPress users enabling every optimization feature.
He is using HTTP PUSH (WP->Settings->Litespeed->Optimize tab) that`s why GT Metrix gives those warnings.
And finally, HTTP PUSH won’t make WordPress faster.
https://closte.com/blog/http2-server-push-faster-or-slower-for-wordpress
