Should I Tile My Floor Or Walls First

Sorry for the confusion that is not my bathroom just showing the exact tile i m using in my frameless borderless shower stall the second photo is the vanity i bought that will float somewhat on the wall there are no windows in the bathroom.
Should i tile my floor or walls first. From there you should rip up the floors. The ideal is to first do any prep work to the walls e g ripping up wall paper sanding and patching walls etc. Stud walls need to be installed over double plated floor joices for the extra weight. Although placing the floor tile at last would.
So to accommodate the flooring tile many like to leave a small gap between the last row of wall tile and floor. So if you put you subfloor down first it will probably take just as long if not longer to do all the additional measurements to find the plates for accuracy. It depends upon the comfort of individual and availability of material. The walls are lft 6x24 tiles and the floor is natural stone pebbles.
Opt for floor installation first because it s often a messy process. Some like to use a ledger or other space saver to indicate where your missing row should be. The grout color for the wall tiles is slightly darker than the grout color for the floor. Also it s often better to paint the ceilings first especially given that the ladders will rest on the floors.
Do i grout the walls or the floor first. There are no doors on the shower. A gutted room eliminates much of the dirt and grime associated with removing old carpet tile or wood flooring. I think the 3rd photo is the floor tile.
I have finished tiling my shower and am ready to grout. And after installing the floor tile you can install that final or first row of wall tile. But commonly the floor tiles are placed before the wall tiles. The reason for that is that this can damage the floors.
There is no such rule to lay floor tiles before the wall tiles. Or fill the gap with grout.