Well, I've yet to see any web project of that scale survive more than 2 years. What do you think would be a better stack with similar frontend interactivity?
I have Aurelia 1 apps that have been in production since 2015. They don't need to be really touched. But, when they do, they're really easy to modify. I am currently using Aurelia 2 and will have similar scalable apps that will be in production for years to come too.
I have seen Angular projects last pretty long avoiding code entropy. Angular is opinionated, rigid, and verbose, but goddamn if that structure and predictability don't pay off in the long term.
I'd love to investigate that, honestly. I loved Angular v1 (Angular.js now, I think?) and even that was way cleaner and more opinionated than React.
I haven't tried modern Angular in a while. But Next.js reminds me of a lot of the things I loved about early Angular and disliked about raw React (which always was more of a UI lib than a proper framework). Have you tried comparing them in particular?
My most recent use of Angular on a project is using v13 at the moment. I've been doing more infrastructure work lately, and Angular's build times—and bundle sizes—have been a persistent sore spot for me. I keep eyeing v16 jealously since it uses signals, builds A LOT faster, and removes some more boilerplate code in components, and the output assets are pleasantly smaller.
I haven't tried Next.js myself though a coworker was playing with it recently. The amount of components available for React, especially the for-pay libraries, can really decrease time to release. But it's still React. Builds a little slower than Angular 16 at this point, but it's fairly close. You still need to keep a firm hand on the codebase when working on a team to prevent code enmuddification, though less so than plain React. React's (what I consider) extreme amounts of boilerplate for doing anything of consequence is still there though. I also personally prefer Angular's service injection patterns over Reacts explicit imports everywhere.
I'd give them both up in a heartbeat for SvelteKit if I could make a business case for either rewrites or new projects. As it stands, Angular is really good enough and fights code entropy well enough that there isn't a business case there yet.
(Genuine question, not being snarky)