Physical strength at first but can make gains the same way you would if you were trying to lift heavier weights. Lifting at your limit taxes the brain, lift too much or too often and you break your mind. >Defense
Barriers, shields, bubbles all rely on the same principle as strength and maintaining a barrier and going UNGA is like splitting your power.>Range
Sight for accuracy, telescopes as extension yes, pictures, streams and videos nah. But they can move their tendrils anywhere, just requires focus.>Perception
Telekinesis requires aim, and telekinetics have no more extra-perception than the average person does, except that they can "feel" what their mind tendrils touch. So a blinded telekinetic is like bumbling, blinded man using his hands and feet to find location.>Speed
So they're not gimped, and it stays a very powerful ability, tendrils move at the speed of thought.>Solid objects and liquids
Would be interesting to explore how that works (which layer am I touching?).
Someone with a god mind would be a god with telekinetics but a regular person still has weaknesses that can be covered with talent and a lot of practice, ideally.