Welcome to our forum.
Does your tub have one? Do you wish it did or didn't? Mine doesn't although my daughter kind of uses the lounger that way. 2 years as an owner, I might consider this were I didn't before.
My cooldown seat is my swimming pool. It is so invigorating to jump in and then back to the spa, and then back to the pool, and then back to the spa, and then...whack! Sorry my record's got a scratch.
The cooldown seat on my LSX doubles as the entry step into the tub which is essential to me. I use it occasionally as a seat....since I run the tub around 99 overheating is not a problem.