The web app previously worked just fine on iOS 15 (still supported by Apple and receiving the occasional update), but ever since the redesign it refuses to load anything.
UA: Mozilla/5.0 (iPhone; CPU iPhone OS 15_8_8 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6.8 Mobile/15E148 Safari/604.1