Only one type. Video Action Campaigns (video campaigns with a conversion objective) were discontinued. You can't create new ones, and Google automatically upgraded all of them to Demand Gen. If you had this type of campaign, it was migrated automatically and kept its history and learning.

The other video campaign types (reach, views, and brand awareness) continue as normal.

For Ads Editor, this is good news: Demand Gen is fully supported, so you can create, edit, pause, and duplicate performance video campaigns across accounts here. Only campaigns that remain the Video type stay read-only, because of a limitation in the Google API.