Squeeling brakes could be a few options, glazed pads is the first port of call, shiny disc surface, mis alignment of the caliper causing the disc to be pushed to the opposite pad is a common one, doesn't take much,
Bedding in process I use is one of the hills in the village, minimal use of brake to said hill, then roll into it, is long enough and steep enough to allow me 4 to 5 good hard pulls on the brake to almost stopped from 20+mph, they need a little heat in them to clear out any residue,
I thought I best add a little context to my answers here, so a couple of images of my cycle repair workshop! This is V3, V1 was the original outhouse shed, 14x8ish, after 7 years it became a little small, replaced it with a Yardmaster Garage in 18x10! Just on the year anniversary of the new shed, the stereo amp over heated causing a fire early one Sunday morning in June, lost the lot, 2 bike frames survived by being Steel, all the alloy bikes Melted, so this is V3, the rebuilt, tweaked design shed!
Today's 2 jobs pretty much opposite ends of the spectrum!