Can I activate All Fighters Follow Me on turn one by having Garm as my fleet's commander?

Is the start of the first round before or after the start of the ship phase or can I do them in any order?

With other rebel commanders could the Precision Strike scenario and Ahsoka to convert the starting CF token into a squadron token be used to activate AFFM? or does that require a ship to be activated and so it is no longer the start of the ship phase?

Of course I could always just discard the AFFM card....

Yes to Garm, no to Ahsoka and Precision Strike

1. The round starts

2. Command phase

3. Ship phase

4. Squadron phase

5. Status phase

6. The round ends.

Basically what Ginkapo said.