p.s. If you see a video you like, you can follow the channel or account that made it by doing the following:

1. Click on the name of the account or channel that made the video. This will take you to their profile page.
2. On the profile page, click ⧉. This copies its Fediverse address.
3. Paste the Fediverse address into the search box in Mastodon etc. This makes the profile appear within Mastodon and you can just click "Follow".

See the attached images for examples of this.