Keep in mind whether a given address is accepted or not is up to each company / agency you deal with.
Completely separate from DMV / Real ID, wish is just one single example.
Just because some company / bank / insurance etc accepts it this year does not mean they will next year, nor that a different outfit will tomorrow.
Those who seek a long-term universal solution should use a true residential S&B home address, preferably owned by a stable trusted friend or family.
No matter what a commercial service may promise, remember it's not up to them. If the local government has a court affidavit supported procedure like some Florida counties do for those living on boats, then great, further information on those would be appreciated.
None of this is to imply any problems "lying", that issue is irrelevant.
The point afaic is to make my digital footprint look as much as possible like a normal S&B dwelling wage slave citizen.
No arguing trying to make the bureaucracy care about logic and real life, feed the forms what they're used to, stamp stamp, ere's the check now on your way.