I am always very suspicious of the Repco branded stuff - some of it is great, most of it is ok, some of it is garbage.
I definitely try to buy brand name bearings.
Be aware that Volvo changed the bearing sizes in the early 1980s. The changeover was very difficult to determine because it seemed like they were whacking in whatever struts they found on the day… You car should be new enough to have the larger bearings, but it is possible that it has had a replacement strut body in the past, so (ideally) you would confirm this before you buy the new ones.
A bad bearing usually makes a growling, rumbling, crunching or howling sound, depending on exactly how it has failed.
If it’s more of a scraping, grinding or screeching noise, then it’s more likely to be brake related.