I can relate, even if it's not specifically about podcasts for me, but rather any source of information.
How I try to cope is by striving for contextualizing decisions.
Everything I do or could do and every value I attach to something depends on and is influenced by context.
Every choice I make affects more than just one area or part of my life.
My life consists of more than one thing.
Yes, I could spend all day doing X. How would this affect different areas of my life? Is this the single most important thing in my life right now? How will this benefit me? At what cost? Is it worth the cost?
Striving for a more holistic view of my life helps me balance my tendency to lose sight of the whole for focusing in too much on one single thing without context.
Plus, dealing with the roots of my anxiety rather than the outgrowths alone.
I really struggle with this, driven by this anxeity that I am "falling behind" in terms of knowledge if i don't consume it all the time.