There are already dozens of decent feed aggregators, and I’m not interested in Lemmy tacking on functionality that’s superfluous to social media. https://en.wikipedia.org/wiki/Comparison_of_feed_aggregators

Or do you mean follow or block posted links to sites? That functionality already partially exists at the admin level. We can block posts of URLs to specific domains. https://github.com/LemmyNet/lemmy/issues/4514

There’s already a ticket for per-user URL blocklists: https://github.com/LemmyNet/lemmy/issues/4689

Use RSS

Piefed has this, but you can't follow websites only block them, but I prefer RSS for news I don't get my news from the Fediverse

I probably wouldn't.

From the first RSS feeds onwards I have found that anytime I curate a list like this, 6 weeks later I am ignoring the entire thing. Either the individual feeds contained a few items of interest that one time, but basically nothing since, or else there are a lot of interesting items - but they are buried in a tidal wave of uninteresting ones.

Make a community and fill it with rss feed bots.