They've both played out of MetLife Stadium since 2010, before that they shared Giants Stadium from 1984-09, and even before that they shared other stadiums on occasion when it was necessary .
Starting from next year the Rams and Chargers will share SoFi Stadium in LA once it's completed construction, the Lakers and Clippers have shared the Staples Center since it opened in 99, and I'm sure that if I bothered to look that I could find plenty of other examples just in the USA alone.
Closer to home, every AFL team from Melbourne, Adelaide, and Perth ground-share, and if that's not enough for you here is a Wikipedia article on teams that ground-share or have ground-shared in the past-
https://en.wikipedia.org/wiki/Groundshare.
The reality is that ground-sharing is becoming the norm more and more because it's cheaper and more efficient, and frankly unless the Queensland government is open to building another stadium similar to Suncorp, the best outcome for any new Brisbane club is to play out of Suncorp.