Installation went well despite the weather and the poor engineer up the ladderl, new ONT with a 2.5Gb ethernet connection straight into my existing GT-AX16000 router.
getting from between 1.5 and 1.8 Gb depending on different test sites.
Openreach will move to symmetric services when there's enough competition that they become an outlier. We're basically dependent on Virgin Media to offer symmetric services over Nexfibre before it might make Openreach change their product offering, and at that point I would expect them to introduce some sort of professional FTTP product with SLAs on fix times to try and limit the revenue loss from people moving away from Ethernet.