@a1ba @lanodan Japan still widely uses PPPoE over up to 1Gbps FTTH. Yes, it's terrible and most providers are pushing IPoE these days... but you still get PPPoE credentials from ISPs, and it's often the only way to get a public IPv4 on consumer contracts (IPoE is usually v6 only with some CGNAT based tunnelling tech for v4). The PPPoE access concentrators are horribly oversubscribed, so you never get proper throughput over PPPoE these days.
For 10Gbps FTTH they gave up on that thankfully, at least for normal consumer connections.