I’ve been taking photos at more events indoors recently and doing much less landscape photography because of the weather. Indoor photography poses its own problems with low-light. To get some scenes in focus you need a wide depth of field but struggle with the low-light at narrower apertures. The answer is to just stay wide-open and try to take close-up shots of people. After all, at events, it is the people who are the subject!
The photographer’s triangle is; ISO, aperture and shutter speed and when it is a cold dark winter day with poor light, your first choice is usually to up the ISO. This effectively makes the sensor more sensitive to light. You can also shoot more with a wide aperture on aperture priority and that will give you a reasonable fast shutter speed but with a narrower depth of field.