After using Olympus gear as my personal hobby camera for some years, when the O-MD E-M1 Mark II was introduced, along with the 300mm f/4, the Olympus system became a viable option for my professional work.
I joined the Olympus Visionary ambassador program in 2018 and helped launch the E-M1X in 2019.
I currently use the OM-1 for most of my action work. Though I am no longer an Olympus ambassador. I use other micro four thirds lenses (like the panasonic 200mm f/2.8) and I use the canon R5 for my portrait work.