Switched to Twitter API v2 for my Twitter-to-RSS converter. Lots of things got better. In particular, structured info is provided on all links, and I can display it for all of them if I want.
Drawback is of course that Twitter itself is using GraphQL rather than their public API. So this API will always be lagging behind. Right now for example it is unable to retrieve Circle tweets.
A Mastodon instance for info/cyber security-minded people.