How can you set in fortnite chapter 2, that in his lobby are only bots?

I heard this should work but how?

If you do not have custom games, that's not possible

and no, I thought you meant in fortnite chapter 1

How do you get custom games?

With a creator code, from 1k on 2 channels

Would also count insta, and what about 2 channels?

I'll take a quick look

WHO IS ELIGIBLE FOR PARTICIPATION?
Creators (active video creators, streamers, storytellers, artists, cosplayers, musicians, and community builders) must meet the following requirements:

Have over 1,000 followers in at least one major social network
Complete the Affiliate Agreement and follow the https://www.epicgames.com/.../overview#
Must be able to receive payments in a form provided by Epic

We look at all regions, languages, audience sizes, and content types. We're looking for creators who focus on and share the quality of their created moments.

Think that should be achievable

And if you have that, do you also have custom games?

Yes