I feel like maybe the title means "improve privacy" and "improve web experiance" as a mixed list. As in, each item will be one, not both. It's a very strange list/mix up, and in my opinion a poor article.

Grammarly would be awful for privacy. As would LastPass and EverNote.

I felt like this article was pretty low effort for sure. I didn't see anything close to an objective process for determining the best extensions and add-ons.

I'm curious why you say LastPass is awful from a privacy perspective?

Is it because you send your passwords to a service controlled by a 3rd party? Something more dubious?

Would you say the same about Bitwarden if you were hosting it yourself? Or the built-in browser manager (with syncing disabled)?

Yeah they're basically a data miner...