I don't know for how long you have been disconnected, but it's to be expected the updates will pile up and will have to be dealt with at some point.
I'm dual booting Fedora and Windows 10 and I get way fewer updates on Windows than on Linux (every single day there's a new update). I've left a laptop with Fedora alone for 2 months and when I booted it, there were 1.4GB of updates.
Personally I like the bug fixes, improvements and security fixes. I think it's a fair trade-off (on whatever platform you're -- I get app updates on my Android phone every other day).