A few jobs ago, everyone hated the tech stack. The people who had come up with it had long left. I talked to everyone, then came up with a plan to transition to a modern stack. Got buy-in from management.

Half the people (and all who had said they hated the status quo) threatened to quit if we made the change.

Fortunately, it was just in time to collect the 1-year retention bonus. Life's too short. Walked away.