We had some yellowing on our vinyl floor in the 2006 23 foot Safari. Nancy cleaned the floor and used a Floor Gloss to protect the floor. It worked and the yellowing was minor.
I would avoid using this on the 'thatched floor vinyl' used in the late model (2019) Globe Trotter. We avoided that model because of the flooring... it might not work for us.
We have used Pledge Revive It Floor Gloss when purchasing the 2016 and the 2019 vinyl floors. The tan/brown streaks wood grain looking vinyl. Nancy cleans the vinyl with some dish washing liquid and a bucket of water. Wipe clean.
Then applies the Floor Gloss with a sponge. It takes TWO coats to cover streaking where the Floor Gloss is too thin. We do not walk on it for the first day, even though it dries in low humidity in several hours.
Then take rubber backed floor runners to protect the floor on our Off the Grid Boondocking trips and TWO Blue Heelers that sleep on dog pillows. One under the table and another along side the bed. Sometimes just outside the table.
This protects the floor and when we are ready to sell... remove the mats, wipe clean and they look... perfect.
This works for us and we travel into dust and dirt as a regular experience. If it works for US... it will for you, as well.