You’re seeing the Anubis anti-bot Proof-of-Work check to stop automated bots...

https://raymondsinterestingchat.quantlynix.com/posts/why-do-websites-use-proof-of-work-instead-of-blocking-bots-outright

You’re seeing the Anubis anti-bot Proof-of-Work check to stop automated bots and keep the site safe for everyone. If the check doesn’t load, it might be because of browser tools like JShelter blocking JavaScript