LG has simplified the unlocking of the bootloader on the G5 H850 compared to the G3 d855, but has added this screen filling note. I don’t consider this warning as a caring hint for data security, but as a deterrent by LG to change the OS.
https://ecloud.global/s/BQywtYCBeeP9Tka
The LG G3 d855 doesn’t know such a warning. It starts with the LG logo and then switches to the animated /e/ logo. That’s it.
There are → different opinions and experiences about re-lock bootloader, e. g.