Hello, welcome to the forum!
They are an active species, and like to be loud.
It depends a lot on your home life. If yiu are out of the home working? Then they are gonna have tons of energy to burn when get home to let them out.
Mine do not screech when sitting with me or on me.
Spring can see some increased screeching as is breeding season.
Usually the biggest impact on screeching, is having them out if the cage much more. Teaching foraging. Keeping them flighted. Teaching simple tricks in short tra sessions. Like stick your head through a hoop to get a treat. Touch this or pick this up for a treat. Increased time with your full attention, and more time just hanging out near you. Easy to destroy toys , shreddes, yucca chips, birdie bagels. Time spent outdoors in a very secure cage , you stay with tgem, and keep cage in shade. My burds love being outdoors, and tgey are always quiet and good after spending sn hour or do outside. I secure tge bottom tray, and all cage doors.