The same question was archived on r/trackers. Would like to get notified when a compatible tracker is available for testing, it’s not even clear if there is an implementation just yet.
The specs are here since 2017 https://www.bittorrent.org/beps/bep_0052.html
Compatible clients are available, at least qBittorrent (from v4.4.0) and BiglyBT.
I can’t speak to current state; but with any luck we are approaching / entering the post-tracker era. DHT handles the actual “tracking”, and other components are (very slowly) coming out to handle search and reputation.
Eh, you’ll still need something that allows you to search for a file/torrent and gives you a hash or magnet. Right?