Those leaves look fine to me. Phals usually hang, crown down, from tree trunks or branches in the wild, so droopy leaves are quite normal.
In pots, a new leaf will grow up, then usually starts to angle towards the light and finally droop under its own weight naturally for the bigger phalaenopsis. A smaller species phal I own has thinner, narrower leaves and those grow upwards for now. So long as the leaves are firm, not wrinkly or spotty, they're usually fine
Of course, if the leaves were more perky yesterday and suddenly ended up floppy, then that's another matter that might have several different causes. And one that would need a more experienced person.
But your plant looks like one of mine, and it's been blooming faithfully for me every year, just expect it to grow leaning in the window's direction over time