The weekend has been a bit sporadic in terms of performance on my line and have never had issues.
Centurion
Openserve
25Mbps
IPv6 enabled.
Auto DNS.
Netflix was a hit and miss, sometimes loading and not loading - multiple devices giving same error.
Video quality also shocking even though line speed shows full throughput.
Prime Video loads weird messages in Japanese and German - home page does not load and often after a device reset it then manages to find its feet again.
Youtube - streaming quality also not where it should be, video's take time to load, and sometimes the app doesn't resolve.
All of the above on wired and WIFI, didn't have these issues on IPv4, also all these issues happen even though full line speed is being achieved on speed tests. Router and ONT reset doesn't seem to make much of a difference.