It's insane to observe the frequency in which things that work just fine get "fixed" with no outstanding tangible benefits.
In software, it happens quite often.
Resist all of the urges to "fix" things that work and instead focus on things that don't.
By all means, pay down tech debt when you can, but make sure it's tangible debt that will make a real-world impact.
Avoid procrastinatory "work" and drive towards things that move the needle.
And remember:
If it ain't broke, don't fix it
Your future self, colleagues, & employers will thank you.