If you're referring to Google Safe Browsing lists, all major browsers check agains the same list. I've managed to get mine listed there and immediately banned on all major browsers.
I didn't know you could SEND mail with Hide My Email feature, but apparently this is a feature directly in the Mail app. Tapping the From in the mail compose screen opens a dropdown of possible addresses to use or create a new one with Hide My Email.
IMO there isn't a cookie nightmare but rather a tracking nightmare. I'm not fully up-to-date on if there is a separate EU directive on cookies on the internet specifically, but the GDPR is the _General_ Data Protection Regulation. Meaning that if I go and collect your info on pen and paper, I must then ask your permission on how I process and share that data, especially if sharing that data is not necessary to complete the main transaction but is somehow done auxiliary to the main purpose. (e.g. I buy a pillow online, my info is used to target ads for me.)
GDPR itself doesn't require consent for functional cookies. For example, Apple.com does not have a cookie consent box _at all_.
On tracking specifically, I feel there are at least two levels. One that happens in-browser by third party companies. These are your classic advertisements. The other is more first-party backend-heavy. These would be your local grocery store using your purchase history linked to your membership card and using that data to create analytics and targeted ads etc.
So creating a browser setting would likely not toggle all tracking away, just the ones that are "annoying" while browsing.
If I wanted to achieve the same result, that is to serve assets of others from my own domain, I'd just create a custom endpoint like /api/user-avatar/:userId and an action proxies the actual image from google, maybe keep a cached copy for some time to not have to redownload the image on every request.
Apple also built a custom video element for web they use for their events. See the Apple Events page[0] and click "Watch the event". It also seems to dim the video when mousing over. I kinda like the design, but the animations seem a tad bit slow.
Wouldn't deprioritizing interfere with regular web traffic these days, given that close to one third of non-bot traffic reported by Cloudflare is over UDP with HTTP/3[0]?
Not 100% right as some companies in EU member countries such as Finland, where I'm from, were allowed to use a certain clause that would allow them to still add roaming charges (mostly data related). This is done because the majority of operators sell contracts based on the speed and not a monthly GB cap. Almost all contracts are unlimited in data. I for one have a ~30€/month contract that has unlimited data with 50Mbps down / 30Mbps up.
After the roaming change my contract includes ~6GB of roaming data within EU. When that's reached there is a 0.0057€ per MB price in data abroad.