I used Django for a project a couple of years ago. Of course, there's a lot to learn. But generally I found that everything makes sense and I was able to build a moderately complex site with user accounts within a reasonable time. Work took me in different directions, but if a project came up I'd use it again, no problem.

Last year I taught myself Next.js for a project. Everyone would say that's a modern framework, with a modern website. I already know React, I'm quite familiar with prisma.js. Learning and using it was (and is, because now I have to maintain the project) painful, confusing, and full of footguns. I wanted to host on Cloudflare but half the stuff doesn't work so I'm forced into Vercel. Takes ages to understand how images work, how server side works, and so on, and those things are still confusing to me. Constantly I ran into tricky problem about getting data to a client side component, or server side, because some UI library wasn't server side or something like that. Even getting the two fonts I'd chosen into a client side component took me several hours! And I still felt like the solution I came up with was hacky and fighting against the framework.

I regret learning the "modern" framework. I don't regret learning Django. Don't let fancy marketing fool you into using a bad tool, or drive you away from a good one.

Don't judge a web framework by it's website.