Arsenal are reportedly ready to buy players for next season. Ivan Toney and Morgan Gibbs-White were targeted by Arsenal. If you look at Arsenal, many transfer players from the EPL. This means they buy players who already have experience in the EPL. They don't want to risk the adaptation of failed players. These two players also have not bad statistics, they deserve to join Arsenal. I think Arteta didn't choose this player wrong either.

Source: https://www.footballfancast.com/arsenal-looking-to-sign-another-rice-in-morgan-gibbs-white/