I’m confused as to what PHP has to do with JavaScript front-end frameworks.
PHP deserves honorable mention here as the "it's not stupid if it works" of the JavaScript framework world. Everything* JavaScript frameworks can accomplish can also be done (much worse) with static HTML delivered by PHP.
*Please no one give me examples that cannot be done without JavaScript. Trust me, I know. But any business requirement can be met with plain HTML if you really deeply hate your end users enough.
I'll build a cms with Drupal or WP complete with base visual theme inside of a day while Django devs are still working on their initial model objects. Don't even want to consider folks using obscure go or rust frameworks that. Modern PHP gets way too much hate and it's probably the quickest cheapest way to market for most small and midsize business.
This just in: people creating basic CMSs benefit from using a prepackaged CMS that requires no actual development work, only configuration, over a web framework.