All my parrots are full flighted pro's!
They can zoom almost skimming the floor, Phoebe quaker favorite game. If there is group startle ( rare) they fly high speed laps avoid each other and any obstacles.
The earlier warning about low /dim light is true only time I've had an issue.
Also there is a learning curve. Those just getting their flight feathers back, and babies just learning to fly are at the greatest risk to fly into walls window and obstacles, and miss landings. Great news tho with practice and building up muscles most will become pro's themselves @
So take some precautions with the learning ones. Bird strike decals on window. Lots of walking tours of home, stop with them and tap on windows and walls. Teach them flight paths by walking out from cage and back to cage from many different directions and repeat often. You can also teach them landing spots , stop and set them on sofa and chairs, or perch plsy areas. then pick them up and continue tour. Lay out blankets and pillows on the floor while they are learning. It can also help them practice in a carpeted bedroom with landings on bed. Its soft and landing takes practice. Encourage short flights from you to their cage even just a few inches hop at first. The cage is security and they are often more confident and motivated to try and return.
My clipped babies learned fast, but had directions change issue as all flight feathers weren't in when they started. Many birds can have fear of flying down from high places. So when they start getting good, put them up on something your head hight then walk out a few feet so they are flying down at a shallow angle. Maybe sit in a chair and Encourage them to fly to you by munching on some chips ( lol irresistible to mine) .keep practicing with higher perches.
For those with young babies, please allow to fledged an learn to fly well before clipping if you must. This time they have a biological urge to fly and little fear of falling. It develops their brain and vision, skeleton structure and muscle development.