You’re welcome 
I somehow got on the email list for Olympus and received an email about the update sometime after it was released or I wouldn’t have known about it either. I can’t say if there’s a huge improvement in anything since I’ve barely used it since I updated, but I’m hopeful. They did indeed need to update the anti flicker, it was pretty awful when shooting my daughter’s late evening softball games and/or doubleheaders. The Sonys are certainly better in that regard and IMO the A7iii is a bit better the A9 there. It seems switching to mechanical shutter helps, and the A9’s mechanical shutter is only 5fps. Not bad, but it’s a huge slowdown when you’re used to 10-20fps.
Speaking of FW, there’s also a firmware update for the Metabones IV that’s supposed to enable 10fps with adapted lenses on the A7iii with CAF. I’ll definitely have to see if that’s really true once softball season starts (soon).