@Exchange_User thanks for this question.
After reading Exchange Server SE: How can I upgrade to the Subscription Edition? - Franky's Web
Lansweeper should still support Exchange Server SE as the article states "Exchange Server SE RTM (the first published version) will not bring any functional changes compared to Exchange Server 2019 CU15. In principle, only the name and the type of licensing will change, nothing more."
We'll have it validated in our lab to ensure it can still scan Exchange Server SE.