To be honest most of the BMPCC and Micro and P4k and Kinefinity, Z-Cam RED and other samples are shoot like DSLR with clipped highlights so it actually makes very small difference. Some looks sharper/softer on 4k screen , some have more/less rolling shutter, more bokeh/less bokeh, but usually they all have the same fake filmic youtuber/corporate style look. People keep overexpose, doing too open shadows and clip highlights even when they use wide dynamic range cameras. Just for reference - grab some stills from some 35mm film movies transferred to BlueRay, put them to Resolve and take a look at RGB parade levels. You will be surprised their actual low brightness level on the scopes. Older B&W movies are even more darker because B&W film stock have wider dynamic range.
If you want something "cinematic" just learn to see and shoot something cinematic, next you need to expose it in cinematic way. New camera can't help do things more cinematic if you keep shoot and grade things in non cinematic way.
There is other little thing in 1080 Pocket/Micro camera that you probably can't fully mimic with 4K sensor. It is some sort of micro texture look. The theory comes from Film scans for photography. I noticed that if you scan full frame 35mm film on 8K scanner with hard direct light source, you can fully capture source grain structure. This shapes image micro texture look even if you downscale it to HD and do some soften. Same time if you scan film with soft diffused light on 4K sensor grain structure, dust and scratches magically disappears and image looks completely different. It became smoothed in some very unique way. The same smoother creamy effect i see in BMMCC 1080 sensor combined with OLPF filter. The starting point of sharpness and details level are exact at the level of "film looking image" and don't produce "stills photography effect" similar to other higher resolution cameras.
Not sure if it all helps to find a proper wall mount (whatever it could be) to topic starter