Two downsides to the F1 method.
1. The ships are grouped by ship type of the same Mk. (Like all the various different hybrid hive structures under one icon, and the roaming enclave, preservation warden, and normal Mk. III neinzul younglings are also grouped together, among others). In this case, the tooltips are appended together, but sometimes the combined text can get too long to fit on screen. In this case, you will need to go to the reference tab to get the info that was cut off.
2. Only things that can be shown in the normal side bar will appear in the F1 sidebar list. This means that the stats for modules (like for riot control ships, hybrid hives, and the later fallen spire starships) will not appear in that list. For those, you will also have to go to the reference tab.