I fuse my arrows with eyeballs to stun each head, use a charge attack with my strongest 2-hand weapon, and dodge the other attacks. Always use 3x attack up, wear the appropriate elemental gear to nullify attacks, use the sages for extra attacks/distractions. They can be pretty easy if you pay attention to where they are and recognize their attack patterns. Like when their health gets low and they fly up high to unleash a massive attack. That takes time so you need to get up there and take out their heads before it's too late or take cover.

Edit: Also consider fusing the stone slabs. Two long ones 90 deg to each other and a corner one to make a roof that's high enough to just Ascend through. You can hide behind it to sneak up to them, use it to get bullet time, and use it for cover.

I just put eyeballs on my arrows and shoot the heads. Uses a lot of eyeballs though.

You can use an octo baloon shield instead of spending a rocket.

You can parry the lasers but since they are continuous, you end up getting hit after the parry and you don't reflect them back.

The best damage combo once it's down is to be at 1 heart or less with a molduga jaw knight's claymore, Evil Spirit armor (Phantom Ganon) or Radiant armor (glow in the dark skeleton luchador), and attack lvl 3 food. This allows you to kill it in 1 cycle. I think the base damage of that sword is 128 displayed, the armor multiplies by 1.8 (cause the jaw is considered a bone) and the attack buff by another 1.5. This assumes the sword has the attack + modifier and is pristine.

Keese eye arrows and lynel / demon king bows. Takes em out real quick and kind of makes them nothing-burgers.

I farm up a bunch of keese eyeballs (shooting a bomb arrow at a cave swarm makes this easier) and use those to target the heads. If you have fire/ice eyeballs those do elemental damage against their opposite types of gleok heads. If there's an ice gleok head, you can use recall on the ice spike things during the last phase to get closer, but for the other gleoks I usually just keep trying with eyeball homing arrows until they hit.

I haven’t fought any yet at all. I might today that one on lake hyrule bridge is the only 9ne I know about.

Rocket shield, spring, fire + pinecone... Any way to fly. Let loose guided arrows or gibdo arrows if close enough. Two handed charge attack while down. Final phase depends on the gleeok. Lightning immunity helps on some of them.

I used a bunch of aerocuda arrows myself

So i struggled with lynels. Went on youtube and found videos of link beating lynels in his undies with 3 hearts and a pot lid shield.

Was hoping Gleoks could be beaten by some fancy parry and flurry rush timing... But looks like, i need to bullet time some how...

Wow I'm brain-fried. I thought the title said "How do you beat Glocks"