For people looking to transition to management, one thing I’ve learned is that a big part of my job is getting everyone to do only one thing at a time. Every stakeholder (including engineering managers) are obsessed with the idea of “sneaking a bit more work in,” and I’ve never seen it work. I will actually go as far as to refuse to estimate work if I have something more important for the team to focus on. After all, estimation is work and we have a higher priority!
The benefit is that you’ll often find nobody actually estimated the business value/priority before asking for the work estimate, so you end up wasting less time overall. The hard part is resisting the pull of your boss asking you to do something.