I think Manchester United will have a better season than Chelsea because Manchester United have a more stable team than Chelsea who are obviously lacking experience in their squad and as a result struggling to win games even against the smallest of teams in the league this season. Manchester United have a high probability of improving as we approach mid season.
Actually, both clubs are equally bad. However, between the two, Man United is more reliable in my opinion. Even if we meet both of them, we don't know which one will win, because sometimes, Chelsea also provides unexpected surprises. However, here, when assessed from the overall process and achievements to date, at least, Man United has won several times and is not as down as Chelsea. Chelsea has been below average and is still like that.
But I think that Newcastle will forget this victory not so soon for a number of reasons
On the one hand, Pep Guardiola has really more important goals to win titles this season. On the other hand, this victory over Manchester City is very important for Newcastle United and Eddie Howe to raise their spirits and gain confidence in their abilities,
Yes, even though it was the EFL, however, this was quite an extraordinary moment for Newcastle. Although it could be said that Man City may not have played optimally in the match at that time, because it was not their main focus. This can really provide good motivation for the Newcastle players and coaches so that in the future they can be more optimal and better. Moreover, there is still a long way to go. In the future, they will compete against Man United, which can sometimes be troublesome. They also still have to compete in the very tight EPL. Moreover, they are also in the hell group at UCL. This will be a forge for them to always be better and better.