What’s Your Story? How Did You Find /e/?

[obacht]

@MrRoughwood

should I try to lock my bootloader again (Nothing CMF1, tetris), so it is more secure

You may read the linked reddit post for more general info on that question (no idea if your phone allows it though):

Switching to E/OS permanently (Relocking / question)

This “discussion” tends to see both sides https://www.reddit.com/r/LineageOS/comments/n7yo7u/a_discussion_about_bootloader_lockingunlocking/. With the ROM as downloaded, quite a high chance as the ROM has not been built with the intention of locking again.