[seneca]

It's really depends on your relationship with your manager. 99% of the time, it's a bad idea to say you're interviewing. If your manager is someone you trust, and they genuinely have your interests in mind, you can talk to them and they can use their influence to try to solve whatever problem is making you think about leaving.

If you're not confident that's the case (and unfortunately it's rare), it's too risky to make it known you're interviewing. It is often better to discuss whatever is making you unhappy, but without saying that you are considering leaving because of it.

[someotherperson]

I’ve been in that situation with the 1% manager, and it still doesn’t end well. The manager resigned on my behalf after getting “drunk and sad”, which I had to rescind, then that same manager out of shame eventually fabricated a story to get me fired which led to a legal dispute due to the nature of the claims. Sounds fine so far right? Bullet dodged?

Until I applied for another role 6 months later and the CTO knew the CEO of the former company, where overnight I went from completely technical and culture fit to even my recruiter being ghosted by the company.

The moral of the story here is if you’re exiting then don’t really bring it up unless you’re entirely prepared to exit that same day. When things go south, they hit rock bottom and the consequences go beyond the four walls of your office.