Pokemon: Let's Go Eevee - Part 6 Celadon City Gym
This segment has changed a bit since the old days. There are apparently events in Lavender you need to trigger to move the story forward. Since I didn't know that, I immediately leave Lavender for Celadon and take on the gym there. However, I will need to make a return visit to Lavender in order to unlock the Rocket Hideout since that too has changed.
On a somewhat unrelated note, this will be the last time I abuse the rare acquisitions for progress. Mr. Mime will be staying on the team for a little while, but this will be Charmeleon's only appearance as expecting to get him in the Rock Tunnel may be a little difficult/time consuming to do. The next set of heavy hitters to join the team will be much easier to come across, and they may not entirely be expected...