Too much $ to host videos from the sound of it. Too many instances vanish. Strict upload limits means it’s more suitable as a gif meme host for your element memes that you don’t care about than an actual YouTube alternative.
Anyone else feel similar?
You can comment using an account in a different Peertube instance, even using another Fediverse service. But the experience depends on the federation between instances.
It is possible to access a Peertube video from a lemmy.ml account, using a browser. It is an example: https://lemmy.ml/post/563193
But you need to follow some steps.
The simplest way to interact in a Peertube video using Lemmy or Mastodon is using the video URL (you can use Sepia Search to look for videos across different instances) and paste it in the search bar of your Lemmy or Mastodon account.
You can also search for hashtags or text, but the content needs to be previously federated in some way that I don’t understand.