Varifocal glasses are great, but can be very expensive if you have high correction requirements. Avoid the cheapo lenses and pay for whatever premuim/custom option the optician offers as this increases the 'sweet spot' on the lens and makes things so much easier. Also, different manufacturers do them in different ways, so if you can't get them to work, ask the optician to get a set made by someone else - frame choice/lens shape also affects things.
However, varifocal contact lenses are very different to glasses. They work for some people and not for others as rather than look through a different part of the lens (consciously) your brain gets multiple images and has to figure out which one to use.
Also, when it is dark, and your pupils dilate it can mean that none of these images are sharply in focus, which often means it is impossible to read restaurant menus without resorting to a using a phone torch!
If you are short sighted, but need reading glasses then there's also a compromise/tradeoff between the negative power for distance and positive adjustment for reading.
I've had to take 0.75 off my distance to get acceptable reading in low light. That means I have a set of lenses for when I'm mostly out and about in the sun meaning I can see and read fine, but can't read indoors and another set with slightly worse distance vision where I can read in the evening.
Getting old sucks!