You’re welcome!
Apologies, I mentioned Bulk Edit, but I’m actually using Metafields Guru. The free plan comes with 1,000 free credits so you could bulk edit up to 1,000 products. After that it’s an extra $1 per 1,000 credits.
The paid plan gives you more flexibility if you want to do some bulk edits for larger SKU counts, so I guess you could use it to update all your products at once.
The free plan allows you to edit single products right from the product page.
We basically add a new product and once created access the “MORE ACTIONS” dropdown at the top right of the product page, and pick “EDIT METAFIELDS”
It will then open all existing metafields, and we just either add this one if it’s not already listed, or just make sure to switch it to “false”.
I hope this helps.