If you're ever in a situation where your toots aren't federating or re federating slowly from one instance and you want to boost them from a different one, you can
- right-click copy-paste the how-long-ago-tooted bit in the upper-right; this will give you a URL for that toot
- search for that URL on the instance you want to boost from
@shura No. Searching for a toot URL lets you show the server a toot without waiting for it to come in normally.