He border is open to all Southbound Americans and Canadians, for now. This could change soon, as there has been an uptick in cases in all border StaJust returned from a two week road trip to Baja. Crossed at Mexicali, and the process has never been easier. We have driven down there several times, and this crossing was the easiest by far!
Low Sulphur Diesel is not a problem, unless you are getting diesel from the guy in CataviƱa selling it out of a barrel.

As far as CoVid goes.....we felt safer there than anywhere in the States! We observed 100% compliance with masks, and temperature scans at every grocery.
Safety has never been an issue. As said above...we never camp somewhere alone until we are south of Guerrero Negro. Mostly, we end up renting palapas on weekdays for about $10-15/night right on la playa. Weekends can get busy with locals at some areas. Our Sprinter is a plain passenger model and doesnāt draw any attention. Mexicans think we are just another vehicle moving people. Lots of Sprinters further South.
Discover Baja is the best resource we have found for all things Baja. They are great! One stop shop for FMM Tourist Visa, Auto Insurance, and up to date advice on Border Crossings, Military Checkpoints, and Road Conditions. Well worth the $39 membership fee!
Lastly.....Agua. Each town has what is called an āAqua Purificanteā (or several). These are places where you can have purified water or alkaline water filled for about 25 cents per gallon. We have a 5 gallon BPA Free water jug that we use, and also have 2 5 gallon collapsible containers. These facilities also sell 10lb bags of ice for about $1 each.