Thanks!
@Stush2019 The knowledge here can be far better & helpful than some "true" experts.
The nursery I got this Dracaena from (and another snake plant not in the picture) really showed pure professionalism:
* Tried convincing me adding perlite to a soil (for the snake plant) is, and I quote, "bullshit".
* Planted the snake plant in a no-drainage-holes pot, said there is no need for any for this type of plant (repotted it myself in a plastic pot sitting in the "pretty" pot).
* Tried selling me "heavy" soil (i.e. slow draining) as a cactus & succulent soil (completely the opposite of what I needed).
All the above while rambling how he's 25 years in business and that I shouldn't "listen to the internet". And this of course adds to the huge original pot I got this Dracaena in and vague watering instructions ("0.5 cup every 20 days for the snake plant, 3 cups every 10 days for the Dracaena").
@purpleinopp I'll keep that in mind. It is actually just below another window (east facing, the edges of the curtains are visible in the picture), not a lot of light from this window tho (most is blocked by trees), but it is some additional light which I hope is enough