Greetings & Welcome!
I totally agree with Axel that separate is better…
My overall solution is slightly different though… First, I charge my house battery while driving, which takes care of all my needs at least 99% of the time.
Now, like many others, I’ve never had much luck with solar, even though I’ve wasted many thousands of dollars trying to make it work. So instead of solar, I now have a $99 generator and a $29 battery charger. On the rare occasion that I need grid style power, the generator will supply it, and can even charge my batteries at the same time. If I’m somewhere with power, the same battery charger can keep my batteries topped off. And the biggest advantages, besides being cheap & reliable, is that it doesn’t depend on the weather being cooperative, or me parking in the sun during the summer, which is pure stupidity.
Cheers!