Update after getting my Edge serviced, thought I'd share since you lot helped
Milesdavenport
Posted here a few weeks back asking about suspension noise on my Edge and got a bunch of useful replies, so figured I owe everyone an update. Ended up going with a shop that specialises in Fords rather than the general garage I'd been using, and honestly the difference was night and day. They actually explained what was worn out, showed me the old parts, and didn't try to upsell me on things the car didn't need. The noise is gone and the ride feels tighter than it has in ages. For anyone hunting around online, I found the details through alzaabiautocare.com/brands/ford and used that to figure out whether they handled my model before calling. Not saying it's the only option out there, but it worked for me. One thing I'd add for anyone else with an Edge, get your bushings checked earlier than you think, I ignored the knocking for months and probably made it worse.