Workouts seem easy after initial FTP. Should I retest or adjust my ftp?

Yeah, I’d say try bumping it up a little by a little and see how it feels with something tough. I used to do this all the time in the pre-Ramp Test days, because there was NO WAY I was re-testing on the 8-minute test. Over-unders were a good check in on FTP to see if my legs were sufficiently loading up on the overs and clearing out just a bit on the unders.