Your room is almost certainly much darker than it feels, and there is a reason that is nearly universal: your eyes adapt over an enormous range and plants do not. A room you can comfortably read in can be a small fraction of what a plant needs. Nobody can judge this by looking, so stop trying.
The free test that actually works is the shadow test. At midday on a bright day, hold your hand about thirty centimetres above the spot where the plant sits and look at the shadow on the surface:
- Sharp, dark, well-defined shadow - direct light. Too much for most things sold as houseplants.
- Clear shadow with soft edges: this is bright indirect. What most labels mean.
- Faint, fuzzy shadow you have to look for: medium light. A lot of plants tolerate this and grow slowly.
- No real shadow at all - low light. Survival territory, not growth.
Go and do this at every spot you have a plant. Most people discover that the position they thought was bright indirect casts almost no shadow.
Your symptoms - leggy growth, small new leaves, one that has stopped - are the classic signature of not enough light. Leggy in particular is the plant stretching toward a source it cannot reach, and it is unambiguous.