FediFox Shield is my project to make an alternative frontend for Mastodon instances, which will also allow running it without all the public api access mastodon 4.x needs to render anything useful
@Unuhi you can copy the url in your mastodon's search field and reply to it there, the Mastodon instance itself is set up to not show anything publicly, because that'll be handled by FediFox Shield in the future (currently only accessible locally for testing)