Ah sorry I should have linked to the local posts page instead of the bare url, which brings you to the federated stream, which automatically pulls in all of the dreck. Too late to edit now, but if you go to https://mstdn.science/public/local instead, you'll find it's way more science (well, and Xmas) focused. Using that URL no longer pulls in diatribes from general topic servers where that kind of thing is encourage like mastodon.social. It's not 100% absolutely totally politics free but the SNR is way higher. Dr Fauci is a fellow at the American Academy of Microbiology so it's only natural he comes up on a server focusing on microbiology. One even wished him a Happy Birthday (Dec 24)!

Another good one seems to be https://sciences.social/public/local