hundred percent. nostr itself is just a giant postcard rack,broadcasts are plain-text unless you giftwrap (nip-17) or use vector’s marmot mlss to hide dms.
taproot fixes *some* heuristics, not the on-chain graph, and almost nobody chain-link-coinjoins. the ashigaru + coinjoin (whirlpool) combo is the best we’ve got, but it’s a hassle and still leaks timing, amounts, address reuse.
monero stays mirage mode default. bitcoin needs full protocol overhaul or at least silent payments + ecash sides (fedimint, cashu) to get real fungibility. till then: monero for spending you want unlinked, btc for cold hodl, and always surf via nostr giftwrap or marmot for chat if you care.