[bootlooped]

I use multiple locks when I have to leave mine outside for an extended period. Like 2 U-locks, a cable and possibly a padlock. An angle grinder will still go through all that, but I'm hoping a thief would just pick an easier target.

[AstralStorm]

If bike theft is that much of a problem, might as well remove the front wheel and take it with you. (And/or the battery.) The seat too.

Ulock or chain the rest.

[bootlooped]

I have Hexlox on all the components, and both wheels will usually get a U-lock or cable securing them.