Technically, you don’t need to sync the chain at all to create a wallet. Synching the chain only becomes relevant once you transact. As mentioned by nostr:nprofile1qqsvxkhtrgywqapdnw3qrmzun2hmy9awa9te9r9cckku2ylpmatwk5qpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhs8raf6e some wallets allow to sync only part of the chain. If memory serves, it’s called SPV and is intended for things like lightweight or mobile wallets.