Exynos 990 (sm-g985f/ds Galaxy S20+) any images that will install with unlocked BL?

basically what the topic says.
i was looking at the oneplus 8 images but they are all for snapdragon SoC.
cant believe that since snapdragon cpus are BL pretty much when the Exynos processors usually can oem unlock the bootloader easily.
isnt there something i can flash/install?
i really dont want any android stuff and want the phone to be similar to a rpi.
as long as i can ssh into it over usb/wifi on first boot and login im fine with no display.
i would prefer that.