will constant security canera upload be allowed?

I have 4 Wyze cameras that I use without issue.  Uploads don’t really occur continuously unless you are constantly watching from a remote location (or looking at SD card data).  Other uploads are just from event-triggers that don’t happen continuously.  The compression that Wyze uses is pretty efficient also, so it doesn't require much bandwidth anyway (only about 200kb/sec or so).  I think you will be fine, but I’m not sure why you say you need 24/7 upload.