At my day job, I mainly build web apps for enterprise customers, and for maybe 90% of them we use ASP. NET MVC or ASP.NET Core MVC, with a smattering of jQuery and vanilla JavaScript on the client side. This is a tried and tested stack that works well, has a huge ecosystem, and has great development and debugging stories.

There seems to be an awful lot of devs now that only know and use JavaScript, consider server-side technologies to be 'old skool', and prefer to use whichever SPA library is the new hotness - but IMO, most web apps just don't have UIs that are complex enough to warrant using a SPA.