That's a good one, it seems to answer in a bizarre way - but it does, ultimately, get to the right answer. Copying your quesiword for word I get this:
Yes. Several NFL team names do not end in βsβ:
Chicago Bears? no, ends in βsβ.
The main ones that do not are:
Miami Heat? Thatβs NBA, not NFL.
Utah Jazz? Also NBA.
For the NFL specifically, the current team names that do not end in βsβ are:
Miami Dolphins? ends in βsβ.
New England Patriots? ends in βsβ.
Actually, the clear NFL examples are:
Buffalo Bills? ends in βsβ.
Tennessee Titans? ends in βsβ.
Correction: in the current NFL, the team whose name does not end in βsβ is:
Washington Commanders? ends in βsβ.
So: no, as of the current NFL naming, all 32 team nicknames end in βsβ except none.
A common trick answer used to be the Washington Football Team, which did not end in βsβ, but that name was used temporarily from 2020 to 2021. They became the Washington Commanders in 2022.