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Yes, you can enjoy this plant indoors.
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/growing-azalea-houseplants.htm

There are several things to address here. First, moving them into a new environment will shock them. This will usually recover on its own. It is best to leave them alone, aside from watering when the soil is almost completely dry, until they recover. I would move it into a new, larger pot soon. Give it as much light as possible indoors. Any south facing window will work, as windows filter a great deal of light. So they will not be burning while exposed through a window.

This article will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azalea-plants-in-pots.htm

There are a lot of programs that will let you screen shot what is on screen. This is a good way to save it by

There is a button combination that will allow you to do this with a windows computer. This button combination is: Alt + PrtScn button.

You'll need to make sure the soil doesn't dry out completely in the cold weather, and that they have good drainage, but don't over-water. Surround the plants at their base with hay or straw or other mulching material. You can wrap the plants themselves in bubble wrap during especially cold periods. If you want extra protection, you can surround the pot with chicken wire and fill in with hay in between the wire and the pot. Aluminum warming blankets do a good job of insulating plants. Your local garden nursery probably carries special insulating wraps, as well. What you want to pay closest attention to is the roots, so if the plants are elevated, you may even want to tuck some insulation under the bottom of the pot.
Here's the article you may have been looking for: https://www.gardeningknowhow.com/special/containers/overwintering-container-plants.htm

I understand your concern. If you can get it through one more winter, it will be safe to plant it in the ground in the early springtime. You are in Zone 4b, and you might be able to do it now, but it would be safer to wait since your winters can get extremely cold.

Here's a link to an article that may help: https://www.gardeningknowhow.com/ornamental/shrubs/azalea/relocating-an-azalea-bush.htm

Yes, I would do that. But start with the 1 gallon pot and as they outgrow the pot, move up a size. It is detrimental to pot a plant in too big of a pot as you end up overwatering it.

You can pinch off the tips to make the plant bushier.