On the early cameras that supported H265 you’d have reduced quality options but I haven’t seen that for a while now.
I know how you feel as I have done similar. You don't want your cameras at soffit height though, unless you live in a bungalow. The cameras will be too high and you'll just see the tops of people's heads. Ideally you want them around 2.5m off the ground.
I bought some electricians rods. I run my cables up inside the cavity of the house to the loft. They come up just behind the soffit. What I do is drill an 8mm hole where I want the camera at as steep an angle as I can and go through the outer brick, I then feed the rods through until they reach the top (sometimes there is insulation in the way). I then go into the loft and get the end of the rods and attach my CAT5e cable (you could use CAT6 but CAT5e is cheaper and easier to work with and fine for PoE cameras). Then back outside I pull the rods back down and the cable through the hole. RJ45 end fitted and camera on the wall. I then need to go back into the loft and run the cable to where I want it and fit another RJ45 end (if connecting directly to the NVR/PoE switch) or punch it down on a patch panel.
So, still loving my setup. However, sometimes it doesnt pickup line intrusion, which means I don't get a push notification. It has only happened a few times. But a little annoying.
Also, my installer said I could have it wired up with my aerial in my roofsace so that TV's can see the images around teh hosue (that are connected to my aerial system. How would I go about doing this and what would I need?
Will maybe get a play this weekend..... maybe hahah
Yea I use my pc as well. However, being able to view the cameras on my TV in the living room with a ups be really useful for my wife as she doesn't use my pc.