For certain both Olympus and Panasonic have multiple IBIS modes including OFF. In m43 world Olympus is considered the leader in IBIS with Panasonic not far behind and potentially benefitting from their 'partnership.' IBIS is critical for Vloggers - current generation effectively eliminates need for tripod or gimble. Sony invested in Olympus several years back supposedly in part to get access to Olympus IBIS technology, although implementing it with larger sensor is more challenging. Earlier IBIS iterations could, in rare conditions, drift to one side until the sensor was against the stops. It would then 'jump' back to center and restart stabilizing. This resulted in some noticing 'jitter' with IBIS. Current generations have corrected that and are remarkably stable. Users report success at 5 - 10 sec. hand held shots at moderate focal lengths.Curious ... do you know if IBIS can be enabled and disabled in a camera body? I don't own an IBIS body, but was wondering if it's an always-on feature.
Having the ability for precise positional control of the sensor can then lead to other features like Pentax's astrotracking or the high resolution modes on Panasonic and Olympus.