Rule of thumb, just be sure to withdraw at least 10000 sats each time you withdraw from an exchange for future fee reasons.

Trying to withdraw smaller amounts may lead to larger than expected fees when you try to use bitcoin in the future. It's just one of those things we have to learn about as we start to understand the nuances of this new type of money.

If bitcoin was like everything else, it wouldn't be interesting or useful, but being different also means having different limitations to learn how to work around.

As a quick example of a problem cash has that you probably don't see as a problem today, you can't just hand someone a $5.99 coin, you have to make it up from a $5 note, and a bunch of coins.

These problems will become second nature in the future for bitcoin too.