Hi @ Potential LR Learners,
I just wanted to update you that my trial was 14 days—if I remember correctly—definitely longer than 7 days, so if you come across this in the future, they extended it to 14ish days, which ROCKS!
Thank you, LR Team!!!
— (c. Junish 2023)
P.S. Any recent LR Learner who definitely remembers/has a screenshot of the current length of the automatic pro trial length; please post an update in reply to my comment! It would probably help prospective LR learners 
Edit Note: Found photo proof of it on the Forum. Credit to the original user who took the screenshot. I removed their details for their privacy.