Cutting the end of the filament at a 45 degree or sharper angle definitely helps feeding issues a lot.
Manual feeding works, but takes a bit of practice to get the feel for it.
I had my first nozzle clog today, but it was not that difficult to clear. I just ran the load routine to heat the nozzle, then shut off the Flux, and unscrewed the nozzle. I did not even have to take out the screws and pull the cover. There was enough edge on the nozzle to just unscrew it.
With the nozzle off, I could see the PLA wadded up in there. I just put it on a piece of foil and popped it in the toaster oven for about 25 minutes at 230C and cooked it all out. Took it out of oven with pliers and pushed a short piece of filament into it. A bit of black gunk and then clean PLA!
It cooled off quite quickly too, then screwed it back into the head and I was printing all day again. The whole process took probably about 45 minutes start to finish.
Most feeding issues are solved by cutting that sharp angle to feed, get the feel for manual (if it feels stuck don't force it), and run the unload routine when you finish printing for the day so filament is not cooling off inside hotend (preventative measure).