I use it to follow news updates, blogs, updates of apps that I like, some youtube channels and lemmy/reddit communities.
I’m new to using rss feeds, but it seems to reduce the time to open pages on the browser to check for updates.
For example:
Feed with post titles and content from c/ Word of the Day: lemmy.world/feeds/c/wotd.xml?
Lemmy has built-in rss feeds.
I also use the FdroidUpdate subreddit to follow updates. Is there a direct rss feed to follow?