Chamiuan ecash does not solve things like network level privacy or things like timing analysis. But internal to the system every token looks the same.

You can use things like a tor, nostr, or a vpn to mitigate the networking analysis. Timing analysis is a hard problem.

Technically ecash can be done in a way with amount blinding so the amount analysis cannot be done and this should help the timing analysis problems as well if there are enough active users.