I use a Chrome extension called "Quick Javascript Switcher". If you click the icon in the bar, it switches JS off/on for the domain - using Chrome's built-in allow/block list for JS.

I honestly could not live without it. At this point I have pretty much every news and recipe site on the internet blocked. Visiting a new site, as soon as I hear my fan spinning up I reach for the "no-JS" button and the page suddenly becomes responsive again.

I'm not quite to the "no JS as default" level but I'm close.