Pain. At this point I'm not looking for a solution other than switching theme. But I can't switch right now so putting htaccess into read only will have to do as temporary fix.
Discussion
Have you considered Shopify? They allow connecting btcpayserver, afaik 🫡
Shopify has limited customization and I don't think you can use Bitcoin as unit of account.
Might be good short term but I prefer building for lingerie term so the platform that offers deeper customization is better.