I’ve used @npub1uf9g...v8xc and it’s been very useful for all the logins it enables. I work with a combination of that and @Alby extension. I would never ever plug my nsec in too many places. In the early days therre was no other option, but now there are a few. Also, if you are an android your, Amber is apparently a great remote signer. And on iOS Nostash works great!

Although i did have to put my nsec in @Nostur early on as i remember