There are actually a couple of issues here. The first is that you unfortunately moved the plants directly from indirect light to full sun too quickly; like people, leaves can suffer from "sunburn". For example, when I move my seedlings from under lights in the basement to the outdoors in Spring, I first put them in complete shade and then gradually move them into sunlight over the course of 5-7 days (depends on if they like shade or sun outdoors). The second issue is, as TofuGrower says in their answer, the Monstera is a shade-loving plant in its native range- even if you had moved it into sun over a week, it still would've suffered leaf damage (probably crisping). The other plant also looks like a shade lover.
The good news is that the damage is reversible with time - because you've already moved the plants back into indirect light, you'll only lose the leaves, but not the plants.