>>53228
On Bsky, there's a long-term ID tag for an account, known as a DID< and can be used to track the same account, even if the name changed.

Here's MY DID: did:plc:eerlnq7hffwrfvpuehypfcam

And Poopcat's last known DID: did:plc:hdy5xhcag46r375i5am2s37u

Try using Clearsky to search the two accounts up, or standard Bsky.