There are different ways to fulltime. One way is as you have done, parked the RV in a resort seasonally or longer. The benefit is that you can work more easily as you can establish strong wifi access for telework on a regular basis and you can go get a job locally. The downside is that it is more comparable to a stick and brick home and it's difficult for an RV to compete for stationary living due to the space limitations and the extra work involved.
Another way to fulltime is to travel around. This really brings out the advantage of living in an RV as you can go most anywhere for as long as you want - the limited space and extra work are balanced by the ability to bring your home everywhere you go. The downside is that it can be more difficult to work while you go. Wifi can be spotty or non-existent in places. And outside of freelance work where you set the schedule and type of work, it can be difficult to hold the same job as you travel if you need to be "in person".
I would say that if you plan on both working in five years time, get back into a house. Then take vacations out in the RV to travel. Enjoy the mobility aspect of the RV. You may find a compromise that works.