Currently, in many instances, when changing the page, Matomo will redirect to another URL, instead of just changing the hash, doing a full page load. This means JS & CSS will have to be reloaded and parsed again. (Most of the time it will be cached server side, but it still appears as a break in the UX that doesn't have to be there.)

Avoiding page loads would require:

• finishing the initial Vue migration
• consolidating all entrypoint twig templates into a single layout that initiates a single root Vue component
• removing broadcast/moving all logic to MatomoUrl and components that use MatomoUrl's computed properties
• removing uses of window.location and delegating to MatomoUrl
• changing MatomoUrl to only use pushState()/onPopState()

This will probably not be possible until Matomo 5 at the earliest.

Refs #18981