The Canon EOS M200 is a neat little budget mirrorless camera, with a range of matching budget lenses that make it an easy to use compact system. If you want to access more advanced controls it can be time-consuming (several button presses and menus need to be scrolled through to find the switch between MF and AF), but it's not really designed for advanced shooters, so this can be forgiven.
The Canon EOS M6 Mark II, on the other hand, has a high resolution, high-spec system, with plenty of external controls, but the range of lenses available doesn't match. The rest of the range of lenses are mostly plastic lens mount lenses and are mostly zoom lenses. There is no budget 50mm f/1.8 portrait style lens, there is no longer macro lens, with just a 28mm macro available.
However, with a budget camera like the M200, the lens range can be forgiven somewhat, as it's limited (there are only 8 Canon EF-M lenses), but at least it's affordable and quite compact. You can also look to other manufacturers for support, such as Samyang, Meike, Laowa, etc.
The current price of £499 feels a little high, considering the M100 is available for £319 with kit lens. The M200 feels like a £300-400 camera, so when the price drops, it will be much better value for money. If you're going to be spending £500 on a camera, then the Canon EOS M50 would be a better choice.
For those looking for an easy-to-use, compact, "point-and-shoot" style mirrorless camera, the Canon EOS M200 could be an excellent option, particularly as it's got the same colour reproduction as other Canon EOS cameras and a 24mp APS-C CMOS sensor. We liked shooting with the camera, even though, it's not designed for the traditional photographer, it's simplicity and ease of use makes for a somewhat fun camera to simply use, and not worry too much about.