It's TP to TP connections and yeah, sounds like I should NOT check a bag. Short trip overall so can live off a carryon. My TP flight should be in the same terminal correct?

It's a work trip so if I miss connection not going to be too upset. Definitely worse places to get stuck than LIS, I guess if I have to take a later flight looks pretty quick and easy to run into town to get a bite for breakfast and TP has a few other flights to BRU. Would like to get to BRU early and rest up for work but oh well

And thank you everyone for the responses!