Lance, who isn't on ADHD meds cause he wanted to be in the Garrison so bad and due to legalities can't be on the meds and had to work really hard to pass a medical and compensates having an incredibly stringent routine he has to follow to get stuff done (or at least gives like 2 years of earnest trying before realising Iverson only let him in the class cause Keith left and kinda begins giving up a little)
Vs
Pidge who is definitely on ADHD meds cause I mean she fucking broke in and is under a false identity anyway so you know one other thing to lie about and just hides her meds with her tech while she's going there, cause frankly she's not exactly planning to be there a long time she's just there to investigate the Garrison and find out what happened to her family members
Both getting to space and having their own problems (Pidge suddenly having a lack of meds and trying to trick Coran into making a dupe and Lance who's routine is now faltering on account of being in space and a slightly different time shift and his symptoms worsening from the new stressor but is refusing to consider medication cause he believes coran and allura will have a similar policy in place) and really trying to sneak around about it for a good episode
With the resolution being that Coran absolutely knows what ADHD is cause Alteans actually have something similar and he has it and is well aware Pidge and Lance are struggling a bit and has been trying to have like an actual convo about it with them so he can sort something out for them but they keep pretending they're busy so he's having a hard time pinning them down for that talk
And in the background the episode just being about the various struggles that come with now being in space if you have conditions that require some form of support and how the team can support each other