I can see why you get so much sun at location 2. Direct sun won't be harmful for a 3-4 hours. I think many caresheets over emphasize the direct sun burning phals thing. I know in the summer the sun will get even hotter and you will have to take precautions or the leaves will get wrinkled/burned (shear curtains), but in the winter there shouldn't be a big problem. I had to add shear curtains so that I have control over lighting in the summer. The advantage I see is that you get to control lighting with curtains, more speace and you can get higher light orchids too one day like cattleya.
From a blooming perspective, more light has always been better than too little light for phals. The plants give more numerous and bigger, flatter blooms.
The plants bloomed better for me with great big windows with a few hours of direct sun. At my old house I had a huge eastern window and the blooms were great all year, but I needed summer protection with shear curtains.
Nowadays, in my new house with poor windows (they aren't as tall & there are trees, etc.), in the winter my blooms are smaller and petals reflexed or no blooms at all. But in the summer they are perfect. No summer protection yet. They are western windows. In my house I've just built new lower shelves so they get more light, the table used was tall so they don't get all the maximum window light, and I hope now it helps blooming back to its full potential.

Anyways you could grow a phal at any of the locations if they are close to the window for the lower light locations. The ones you have look adaptive.