At one of my previous employers, we were using PeopleSoft for both US and Canada and at my other employer we used Workday for Canada and ADP for the US. I would also mention that for PeopleSoft we had large numbers of ees in both countries, but for ADP we had very small numbers in the US (approx 60) compared to Canada (100k).
ADP was working well for the US payroll team.
I wasn’t involved as much on the US side for PeopleSoft but the company used the software for many years so I don’t think it was too bad.