We've had a pool for 23 years now.
50y old pin oak 40ft from SW corner, 30y old pecan 30ft from NW corner, 50y old pines 70ft N.
Grew up with a pool surrounded by pecan trees and a tulip poplar.
If leaves, seeds, or tassels in the pool are going to bother you, put up a screen.
If it's a dry summer and a storm(or just a big wind) comes in from the west anything but a fake tree will get leaves in the pool.
Put a privacy or screen safety fence as close to the pool deck as you can get it.
Really helps with the leaves.
Don't block the view from the house if you have non-swimmers in the house.
When our kids were young they wanted the pool open early. Tassels were a pain.
Now I wait till the pecan tassels drop before opening. Dry years if the acorns fail and drop it's a pain.
Otherwise, meh, even with the tip of some of the oak limbs over the pool.
Buy one of these:
https://www.looploc.com/
This site made pool life so much easier:
http://www.poolsolutions.com/
Calculator I use:
https://www.troublefreepool.com/calc.html