Also, the Internet Archive uses web seeded torrents to accomplish the problem of insufficient seeds rather than throwing them into the ether (non-crypto variant) and hoping for mirroring by wishful thinking.
Conclusion: Centralized, unicast-like support for p2p is possible and useful for download-oriented clients.
IPFS Desktop in particular: One shitty thing they did was auto re-opt-in to telemetry without asking the user. With that kind of sneaky bullshit, I refuse to run it. IPFS lost trust and is unable to communicate how their "solution" is useful or make it usable by humans who aren't IPFS Desktop developers.