Also the number of micro transactions on NOSTR would obfuscate data collection.

Also, if I send Bitcoin to my bank and then spend dollars with it, is this a valid transaction?

Identifying asset transfers from merchant spending would be nearly impossible.

But we’re not talking number of transactions, we’re talking merchant adoption and this is partially verifiable with BTC thanks to nostr:npub1864jglrrhv6alguwql9pqtmd5296nww5dpcewapmmcazk8vq4mks0tt2tq but by definition, Monero doesn’t want to be identified, so merchant adoption and merchant transaction volume are always obfuscated on Monero.

Again, all that said, the size of Bitcoin in every metric compared with all other altcoins combined is greater and verifiable, so singling out one of the 3 million altcoins to compare with the 58% dominant Bitcoin will always be moot.