Mostly agreed.

The big issue with off-the-shelf AC fridges is the current draw required for them to start.

If you want to go completely zero-battery, you’ll need to highly-oversized your PV array just to handle the 1-2 second inrush starting current.

Or devise a slow-start function, overriding the AC flow to the compressor. So instead of starting at 60hz, you would start at 1, then 2, then 3hz, etc.

I guess OP means they could add a fridge to their off-grid setup without changing their existing battery budget for their other needs.