So as we all know, by default when you connect to check your balance on a Trezor it queries their blockbook servers using your X/Y/Z/V pubs, I’m just wondering if Trezor/SatoshiLabs stores/saves your extended public keys for any reason, even if that reason is caching. I’m only asking because it’s fairly important to know given that if any entity keeps track of extended public keys, all future privacy is gone.
Thanks in advance!