When installing LED ceiling lights, how do people actually choose style and brightness?

I’m planning to replace all the ceiling lights at home with LED fixtures (like panel lights, downlights, and integrated ceiling lights), and after browsing the product options I’m a bit unsure how to choose without ending up disappointed.

I’m wondering:

  • Is it better to go with panel lights or downlights?

  • Will the feel be very different even if the lumen output is the same?

  • Should I pick warm white or neutral light temperature for everyday use?

  • Do different styles really make a noticeable difference in look and light quality?