I had Discovery Plus 3 years ago and they didn't have History. So I dropped it. Sounds like they added some content since then, and then dropped it recently again.
It has been a tenuous relationship through the years.
I used to only watch "Curse of Oak Island," but after realizing that show is going nowhere and is nothing but a basic scam now, I don't miss it.
As you know, I like the free "FAST" service, PlutoTV. Their history channel is pretty good with a lot of real history shows, versus the fluff stuff, although they have a little of that.
Of course, being free, the content tends to be a bit aged, and produced mostly in Canada and overseas. Not a problem, and maybe refreshing to get a different perspective.