Any suggestions are welcome.
My suggestion is that if you want lights to light up rooms you should use lights which are designed to light up rooms, not lights which are designed to not light up rooms.
Note - the end of that is precisely worded. These lights are worse than "not designed to do...." - they are actually "designed to not do...."
Think about it - if they were any good at lighting up rooms why on earth would you need such a vast number of them?
As Winston said, they are horrible things in bedrooms, ditto bathrooms. Plus in bathrooms you need sealed enclosures over them or you'll be in contravention of the Building Regulations (which might not bother you) because otherwise warm moist air will get into the loft where it can condense and rot the roof timbers (which ought to bother you).
You may need enclosures over all the ones on the top floor, if they need clearance from the thermal insulation which you must reinstate over them all.
And then at the end of the day you've got a house which you've made look like a shop, terribly lit by what is in effect a load of torches recessed into the ceiling, and one which you've made harder to sell, as more and more people are realising that that sort of lighting is awful, and the effort to replace it all far too high.
Here's a recent example:
https://www.diynot.com/diy/threads/can-anyone-identify-these-crap-downlights.491138/ Simon is not unusual - what chance do you think someone like that would ever be interested in buying your house after you'd ruined the ceilings?
Don't do it.
Seriously - completely change your plans.