Can 2016 Giant S-R2 run tubeless?

[ghcs]

Like the title says - my wife has a 2016 Liv Avail Advanced 3 that came with S-R2 wheels. The current Liv Avail comes with S-R2 wheels and the Giant website says "tubeless prepped", but the archive for the 2016 site doesn't say squat.
Can I slap on some tubeless valves & tires & call it a day?

If not, can anybody suggest some decent puncture resistant tires for gravel & crappy pavement? The tires that came with it were crap and were replaced with Specialized Armadillos. They lasted a couple of years, but sliced open like a Christmas turkey recently.

Gatorskins maybe?

Thanks