mastodon.social has some serious hickups today (and lately)

This is your sign to find a smaller instance and support that one instead. Or, maybe even go the selfhosting route and setup a GotoSocial instance for yourself.

Dunno if it's related, but the instance seems to be having issues receiving federated contents from some instances for nearly 2 months now.

Summit is dead for several hours now too, at least for me. Have fallen back to the piefed PWA.