Which means you need to find a new employer. There are companies and/or managers out there that don’t have these misalign incentives, encourage best practices (like those in this blog post), and provide psychological safety. They exist.

The incentives are misaligmed at fundamental level. If manager could fire you while still getting the same job done they would.

Your best defence are your capabilities. Being “indispensable” means nothing if the company goes under.