Wait until they start adding additional categories like critical blocker, high blocker, severe blocker, exceptionally severe blocker, etc. etc.
>spending the time to prioritize my work before starting my work and/or discussing the same with my team
And in the past, I did regretted opening unnecessary discussions quite a few times. I learned not to do it, because it ended in endless bike shedding or conflicts and there were no special gained insights. Turns out, I can do trivial decisions by myself.
If priority does matter, then why "waste"? Lets say you get rid of tickets.. then your statement becomes:
"You've ever wasted a few minutes on whether a bug you found is worth mentioning in release notes? Or if it truly should cause revert of deployment?"
When said this way, doesn't seem like "waste" to me, rather a regular part of the job. If the person working the bug doesn't know how bad it is, then who does?
Because when you have a ticket priority system, there is often someone external who cares deeply about ticket priority. And reporting requirements around ticket priority. And metrics about ticket priority over time.
If you've never been pulled into a meeting with Comms and Legal to discuss retoractively whether a (completed) ticket should have been labelled High or Severe... count yourself lucky
Calling "deciding on how to spend your time" a waste of time seems a misnomer.
One project manager in our company started to actually use it for prioritization, the higher the priority the sooner it was done. Soon after, literally everything ended to labeled critical.
A useful priority scheme might be, insert the ticket in the list of open tickets by urgency and importance. Something like that, that you can actually make arguments about and compare.
We start out with some sensible definition of priority for bugs: P3 = nice-to-have, P2 = low-priority-but-ship-blocking, P1 = emergency-fix-this-now. Bug intake goes on for a while under this system. Some bug filers don't feel their P3 or P2 bugs are getting worked on, so they "promote" those bugs to P2 and P1. That'll show those engineers my bug is important! Now we seem to have more and more P1 emergencies going on, and the team is struggling to just get through those. Nobody knows which ones are actual emergencies, and which ones are just "somebody being passionate about a bug".
Soon, we get an actual pants-on-fire production emergency. This emergency is more urgent than any P1, so we call it P0! Now we finally have a way to mark real emergencies, because the bug database is now overflowing with P1s. Soon people realize they can deem their favorite bugs as really-really-important, so they promote them to P0. Eventually, the database is now overflowing with P0s, and nobody knows what's really urgent. Then another real pants-on-fire production emergency happens...
1) Allow developers to change the priority, i.e. downgrade P0 to P1 or P2, with all subscribers notified. Optionally, always downgrade to the lowest possible priority.
2) Shame people for inappropriately using P0. After a few strikes, remove their ability to do so.