A good summary and I'd agree with all of it (especially APS-C probably being the 'sweet spot' of camera & lens size versus quality for most users).
(For the uninitiated - Micro Four Thirds, APS-C, Full Frame, and Medium Format refer to the size of the image sensor in the camera - 'Full Frame' is nominally the same size and shape as a 35mm film frame, APS-C is about 1.5 x smaller in width and height and Micro Four Thirds is 2 x smaller in width and height. See
https://en.wikipedia.org/wiki/Image_sensor_format ).
What's your budget, and are you looking to buy new or used?
Buying used from major dealers like Wex, Park Cameras, London Camera Exchange (LCE) or MPB will generally get you better value than new, with a 6 or 12 month warranty (so it's worth thinking about).
I've never owned a DSLR, only Micro Four-Thirds sensor-size MILC cameras from Panasonic Lumix and Olympus/OM System, so if you're interested in those I'd suggest these as a few good value
used buys. I've owned all of them except the Olympus E-M5 iii :
Olympus E-M5 iii plus either a 14-42mm lens (if you want to keep it cheaper and compact) or the 14-150mm lens (for maximum flexibility). Fairly small and light. Camera body and 14-150mm lens are weather-sealed.
Olympus E-M1 ii plus either of the above lenses or the 14-45mm F4 'pro' lens. A bit larger and heavier, but a pro-grade camera which is excellent to use and has great battery life.
(Note the E-M1 ii and E-M5 iii are basically the same camera, just in different bodies with a few more bells and whistles and better build quality for the E-M1 ii).
Panasonic Lumix G80 plus 12-60mm lens - fairly cheap now but very capable, especially for video.
Panasonic Lumix G9 plus 12-60mm lens - largest of the group but stunningly good value used for a pro-grade camera (
less than £500 for a used body from a dealer), which was top of the Lumix Micro Four-Thirds range until quite recently. As well as great stills, an excellent viewfinder and superb in-body stabilisation, it shoots video of a quality better than cameras several times its price. Below is frame taken from 4k UHD video I shot with it in 2019 (a still photo taken with it would look even better), using the Lumix 14-140mm lens:
View attachment 151285