It's exhausting when kids become chatterboxes the moment you need space and some time to quiet the soul.
I think it's ok to develop some boundaries there. Parents are humans too with human needs. I think it's ok to say, Can you give me x-amount of time and I'll give you my undivided attention?

I use, let me finish this then I'll listen because I'm only half hearing what you are saying and that's not fair to either of us.