Hi @timcorbett,
Sorry for my late response.
Thank you for capturing the behavior in the Screencast!
I was able to reproduced it on my machine - it seems like that windows selection does not select a text object.
I found this is known bug and it has been logged as FUS-34848.
As mentioned in this thread, if texts are exploded, it will be selected by window (at this point they are unable to edit) and then will be copied+pasted.
Or if I selected it using free-form selection, I am able to select those text objects and to copy them.
For the driven dimensions issue, I have reported it to the development team (FUS-35133).
I will circle back here once I have something to share!
Thank you for reporting these.