Users often ask for per-project issue ID's there are even plugins like: http://blog.andriylesyuk.com/sequent-issue-numbers-with-the-project-key/

and issues like:
https://www.redmine.org/issues/5765

Connected with many other re-occuring issues.

So the main reason for those is that users don't like to see sequential numbers
for issues/tasks it generates all kind of noise in their brains, I don't want to write examples...

My proposal is to use UUID like styles for Issue ID, and Rails 6 is allowing that...

For example:
https://pawelurbanek.com/uuid-order-rails

Perhaps somebody is willing to work on some kind or patch.

Best Regards.