I’m usually only concerned with user privacy and not miner privacy. For user privacy the infrastructure requirements don’t matter.

Monero’s PoW algorithm is deliberately hard to accelerate on ASIC/FPGA. Zcash’s PoW algorithm was designed to be GPU-friendly, but is now mainly mined on ASICs.

So currently for miner anonymity Monero has the lead.

However, Zcash is planning to move to a hybrid PoW/PoS algorithm and that might change the situation.

Are you concerned with miner privacy?

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Thanks for this interesting answer. Yes, minerside privacy is concerning. If I were looking for transaction records, miners would be the first I would pressure. But I am not an it person.

The miners don’t have additional information compared to the data in the blockchain. The only information a miner could possibly gain is where a transaction originated, but that can be obfuscated with Tor or a mixnet like Nym.