Oof, that's never fun. When I'm typing a long comment, I always spam copy it so that I can paste it back if I end up losing it. On PC, you can even use Windows+V to pull up a clipboard history, which has come in handy more than once.

Anywho, glad my reply was helpful! There are a lot of ways to interact with the content on the fediverse, and it seems like you're well on your way to finding one that works best for you. Hope you enjoy it here!