FAQ: Do I need a USB stick dedicated to Tails? / Can I have another live distribution on my Tails USB stick?
I'm not sure how to phrase this, but on a Tails USB stick you can only have Tails and use it with Tails. This will be explained a bit and implied in the Installation Assistant but I feel like it's a common question or misunderstanding (see #10177 for example). What do support people think?
If we add an FAQ for that we could mention that have USB stick dedicated to Tails is actually safe as it makes it harder for other OSes to fool around with your sensitive stuff.