So no more video comments API?

I’m looking for ‘https://api.twitch.tv/helix/videos/’+videoId+’/comments?content_offset_seconds=0
something like this in this version of Twitch API

There has never been any official API endpoints to get VoD chat, any previous endpoints that may have retrieved it are undocumented and never intended for 3rd party use.

If you wish to get chat you’ll need to create a connection to Twitch Chat and capture it as it happens, there’s no way for you to get historical chat.