Galaxy S7 Bootloader

I am planning to get SGS7, NOT Edge version. I kinda hate it actually. HEre is my question. Is bootloader unlocked ? Cause I can't live without my CM13. And if So May be you guys can recommend Snapdragon 820 based Phone that can run homebrew roms. Right now I am on OP2 and I simply can't handle it anymore after 5 minutes in any game phone slowing down to around 10 FPS, unplayable condition.

Thank you in advance.

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