Touching on the actual character moments for a bit here: the events of this episode do not reflect well on Chapel.

She’d been hitting on Spock literally since the beginning of the episode, and openly pining after him for most of that time. Four episodes ago, she winds up breaking down in tears explaining to an alien telephone receptionist how much she cares about him. Two episodes she is extremely distraught when Boimler accidentally lets slip that Spock is famous in the future, and her relationship with him almost certainly will not last. And now, she gets into a three month fellowship that she didn’t think she had much of a chance at, doesn’t say a word to Spock until she has no other choice, and then busts out a musical number about how “free” she feels. What the hell.

We already know Chapel has some problems with commitment, but this is a whole 'nother level. Throwing away a relationship she spent most of this show obsessively wishing for, without any apparent consideration for Spock’s feelings or non-breakup solutions to spending a couple months apart, is just wild. I’m sure the finale will touch on this with a little more nuance than a musical number was likely to give, but whatever else is said this is not a good look.

It does feel very quick, given how long they spent teasing the two of them together. This was one of my problems with s1 as well, starting off character arcs and then wrapping them up way too soon (M’Benga’s daughter, for example).

The main thing that bugged me with M’Benga’s daughter is that they’ve basically just retconned how many people understand the way they can use the transporter buffer that was seemingly novel to the TNG folk when they came across Scotty inside of one during Relics. Geordi was all like “what is going on with this transporter” but this season you have Chapel and M’Benga using it as an active stasis system for triage purposes.

Just kind of seems like it would either be more widespread of a use-case in medical scenarios or have some kind of super major drawback in addition to storage capacity like general degradation. Then it would make sense that Scotty pulled another miracle and kept himself from degrading for 100 years.