4. Different types of metavers

It's a tall order to describe the different types of metavers in 2022, especially those that will be sustainable over time, given the large number of companies and institutions that want to create them. As proposed in the interdepartmental report, page 37, , it is possible to classify current metavers into four types: with or without blockchain (i.e. decentralized or not), with or without the use of visiocasks (i.e. body immersion or not), (figure