I was 100% remote for a decade before covid. My secret was always writing things down. Making sure emails were complete and self explanatory. The trick here is to avoid back and forth and do due diligence to capture requirements (and expectations) in writing.
It is natural for managers to drop new details in voice chat sessions. This can get out of hand, as it causes ambiguity (for which you will be responsible.)
Keeping a log of your time for your own purposes, down to 15 minute intervals will help especially when getting started (even if you're not billing hourly.) Doing so will help you grasp your own efficiency.
Take full responsibility for clarity.
And keep getting the work done!
That's it!