We have a ceiling mounted extractor in a very large room and it works really well. We ended up with a Brittania BEST extractor (bought from John Lewis) simply because we have a structural steel running above and the position of the internal ducting fit best with that model, though it's a bit bigger than we ideally wanted. The slightly lowered section of ceiling around the extractor is also because of the steel and wouldn't otherwise have been needed. We were actually told that there is a minimum height, rather than maximum, for it to work properly - see http://www.besthoods.co.uk/2011/08/ceiling-extractors-8-things-you-need-to-consider-before-buying-a-ceiling-hood/ It's very powerful and we've had no issues with it. A family member has the pop up option and that has been a bit of a hassle - it's not that powerful and ends up getting dirty from cooking every time.

Oh, you sound so stressed! Other than the 3D rendering, I would recommend the old cardboard box trick to show how tight all the spaces are. Not only will you not be able to stand in front of your beautiful sleek drawers when you open them - you'll have to stand next to them - imagine coming in the door from the hall with a bag of shopping or your kids coming in with backpacks and then sliding through an 87 cm space. You need a lot more circulation space for a comfortable, working kitchen AND you won't be able to visually appreciate this island of your dreams where it is currently (as Jonathan said). Perhaps move the kitchen and island down in front of the internal bifold doors so you can see the island from a distance and gain more width and then have the seating at the end with the TV on the wall you already suggested, like this photo that J posted: Good luck!

This is a helpful podcast if you are thinking about what size of kitchen island you want or what to go for: https://shows.acast.com/love-your-kitchen/episodes/exploring-function-over-aesthetics-with-amnda-hughes

I like simple styles too. What about this? https://www.lightingcompany.co.uk/nordlux-mystic-20-contemporary-white-ceiling-pendant-p4846