New provider will have outages too. It happens, just move on and deal with it. I don't know of a single provider who doesn't have outages. If the issue is serious it can take some time to resolve.
Honestly, I would know - I used to work for a large ISP. Go outside, read a book, use mobile broadband (if you must). 10 hours is actually nothing. If you do require broadband 24/7 then take up a business plan with a service level but be warned as you'll be paying through the roof for it or even get an ADSL connection with another provider and failover to it if your main UFB connection goes down.
I also would know. I've worked with ISPs before and been a sysadmin for cloud providers for a number of years if we want to go down the argument from authority route. I understand that faults happen - what I want is an RCA, particularly as (if my hunch is correct) this was caused by scheduled maintenance. 10 hours is not nothing and expecting communication on the issue after the fact is not unreasonable.
My biggest gripe is honestly with the contact centre after the buyout by 2degrees. When it was Snap you could ring tech support and the person you were speaking to actually knew what was going on and could answer technical questions, and that is most definitely not the case any more.