Keep work drama at work and home drama at home. Leaking either way makes both harder to fix.

Carrying a problem across the doorway does not halve it. It doubles the ground it covers, so frustration from a shift colors the evening at home, and tension at home follows you back the next morning, where neither one can be solved. Each place loses the thing that made it a break from the other.

Build a small marker between them: the walk, the last song on the way back, changing clothes. Say the thing once to someone who can hear it, then let it stay where it belongs. Keep at least one place where the other problem does not get a vote.