I agree - back in early 2025, I'd been looking for a camera that could do good 4k50 in a compact, lighter, body (smaller and lighter than the Pana G9 and OM-1 that I already owned). Never really thought it would be a full-frame camera, but when Pana seriously dropped the S9 prices in the UK in Feb 2025 I grabbed a 'like new' red S9+18-40 lens bundle from Amazon, basically to try it out properly.
The outcome was I now own two S9 bodies and five L-mount lenses... 🙂 (and rarely use my OM-1)
I didn't think I'd make much use of the real-time LUT capability, but I now use it all the time in conjunction with V-Log.
My handheld 'general video' S9 is in a SmallRig Half Leather Case, which is nice to hold, adds a small grip and looks good.
I use the Pana 70-300mm F4.5-5.6 lens sometimes (which supports Dual-IS), and the S9 stabilisation is good enough to shoot hand-held video at 300mm (with EIS enabled).
The Hybrid Zoom feature is great too (although for video that only works up to 30fps).