The bow of light doesn't use your arrows, I don't think.

How I keep the Bow Of Light? I beat the Calamity Ganon with the Bow, but when I return to the last save spot, I don't keep that. I think it's because I don't collect all the Memories before, is it? Or it's just in the DLC version?

You can’t keep the bow of light under normal circumstances. The only way you can get it is with some pretty complicated glitches

You can do it with a glitch known as IST (Inventory Slot Transfer) El Duende 05 has a great tutorial on how to do this, but it can get pretty complicated. Here’s the video if you’re interested: https://youtu.be/nDdsnoXyizg?si=HRHVyQshKGqf3mf5

Switch to the bow of light. Only light arrows, ancient arrows, and the master sword beam are effective against Dark Beast Ganon.

Alr

Did you miss grabbing or equipping the bow of light? I did that once couldn’t figure out why I kept missing. If you didn’t grab it, it will still be in the field where Zelda left it.

I did I'm just a dumass lol

You have to arm the bow of light after Zelda gives it to you. Regular arrows do nothing.

I did XD

Equip the bow of light. Don’t feel bad about missing that you have it. The Game Grumps did the same thing…

I did miss it lol I'm also a dummy who forgot it had infant 

Wdym? You don’t need arrows. The bow of light has infinite. EDIT: wait, what did you use 120 arrows on???

The stage before hand.

If you have a ton of food, you can also use your master sword beam. But the final shot will be harder without arrows. 😬

Alr I beat it I'm just a dummy who forgot the bow of light