My daughter received an orchid for her birthday and the leaves are turning brown. Now the flower looks distressed. We are in Texas south of San Antonio. Right now the pot sits on a table in a south window about 4 feet from window. We water once per week - my sister-in-law told me about the one ice cube per week. Now the flower petals and stems are drooping.
Orchids cannot, under any circumstances, tolerate direct sunlight. These grow in the canopy of trees naturally, and therefore, only receive dappled light. This is the issue here. They are burning because of too much light.
Here is an article for more information on their care: https://www.gardeningknowhow.com/ornamental/flowers/orchids/indoor-orchid-care.htm