Start with your floors because it s much easier to cover your floors with protective coverings than to try to attach plastic sheeting or painter s cloths to the walls in the entire room.
Finish walls or tile floor firsr.
And let that dry.
Meanwhile install your floor tiles to the wall.
To build the walls first then the subfloor.
Removing and replacing flooring or carpeting is dirty work.
One reason why homeowners may want to paint the walls first is that they fear dripping or smearing paint on their newly finished floor.
There is a possibility that the walls or trim may be damaged by the installation of the flooring.
You can use them on all sorts of tiled surfaces including counters showers floors walls and stairs.
If you paint first and then do floors there is a good chance that a lot of dirt dust sawdust or tile stone dust will end up on your freshly painted walls and trim.
If you paint the walls first some homeowners may think that it is possible to paint with relative abandon then sand out your paint drips.
They are a great way to transition between tiled and non tiled surfaces.
If you do the walls first starting from a straight edge by the time you get to the top you can generally take the straight edges off and finish the wall and floor tile in the same day.
Edge tiles with metal trim for a contemporary finish.
And then finish by installing that final row of wall tiles so that it overlaps the floor properly.
Make sure that you coordinate the metal finish to the surrounding metals however.
The first row near the floor should be reserved using a ledger or other space saver.
I also install the wall tile so it goes over the floor tile at the edges i think that was also one of your questions.