Q.Azalea
My azalea is blooming well but only in 2/3 of the plant. What should I do with the part that hasn’t bloomed – leave it or cut it back? Thanks

I would wait to prune up your plant until it is after it is done blooming.
Here are some articles that will help you.
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/pruning-azaleas.htm
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azaleas-noteworthy-shrubs-for-any-garden.htm
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/fertilizer-for-azaleas.htm
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/common-azalea-problems.htm