What I meant is that you cannot turn any existing webpages to a basic page with some simple tricks like disabling js. That would be a never-ending fight.

You are the one adding extra complexity

I’m not the one defining the business requirement. I could build a site with true progressive enhancement. It’s just extra work, because the requirement is a modern page with actions, modals, notifications, etc.

There are two ways I can fulfill this. SSR with scripts that feel like hacks. Or CSR. I choose CSR, but then progressive enhancement is now an extra work.