I use a pihole at home to block various tracking and advert domains and it is astounding how many big shops or sites that will break when you block them, mainly

I use a pihole at home to block various tracking and advert domains and it is astounding how many big shops or sites that will break when you block them, mainly at checkout. They fail silently. My wife finds that various sites just don't work so I have to disable it whilst she checks out. If these 3rd party cookies and domains are highlighted and force people's practices to change a bit, I will be happy. I just don't understand people that run a site that relies on so many third-party sources to actually function. Since the site owner is not in control of the third-party reliability or uptime, it is essentially handing control/resiliance of the original site to the third-party (and putting the fate of their shop in it too). Absolutely baffling.