TFA goes: A window for response (commonly 14 days) is offered, unless unfeasible due to seriousness and time restraints of the request itself. If the developer disputes the claim and provides supporting information (e.g. license, public domain status, fair use justification), the claim is reviewed.

As someone who has had multiple FOSS projects take down by companies / app stores (happens when we go viral in some country), DDoS'd by rouge actors (thanks for saving our bacon, Cloudflare!), visits from law enforcement etc; F-Droid's post on "appeals process" comes as a surprise. Here's the email I received from them:

  Dear The Rethink DNS Authors,

  The F-Droid platform has received an official order from Roskomnadzor (RKN), Russia's Federal Service for Supervision of Communications, IT, and Mass Media, regarding Rethink (Registry Entry #3133609-РИ) https://f-droid.org/ru/packages/com.celzero.bravedns/
  ...

  F-Droid took technical measures to block your website app page for the Russian site visitors to avoid the risk of limited access to F-Droid as a whole. For further queries or concerns, contact legal@f-droid.org.

  Thank you for your cooperation.

Nothing in there informs me that I had the opportunity to appeal.