It depends on the instance. I created an account on mastodon with guerillamail which would be even more suspicious for an average website than your alias email. A tip, if you do not mind using icloud email, you can even create one with some effort without giving real personal data and using apple hardware (Virtual machines ftw), you can take advantage of its free alias email addresses which would be accepted even on most strict websites.
There are some people who will put this data, the ones who usually agree to all cookies. So even if you let users skip, with some dark patterns you can manage to influence a lot of people. Example: I set up local windows accounts for a couple of family members, yet somehow a week later or so they had online Microsoft accounts connected.
The consoles unless you root or jailbreak them are too restrictive anyway. For older games you can just use an emulator on your PC or mobile.
You can try and later post peertube/youtube link. Nobody can really guarantee that it will be interesting for them until they see it.
It is good to use linux. But this has an impact on everyone to some degree. You may use Linux, but does your family, friends, your doctor, your teacher or boss, and whoever else who has some of your personal data?
Nowadays even calculators have terms of service and a privacy policy that is longer than many novels. Some probably have forced arbitration also.
Not complying with DMCA takedowns in EU would hurt American tech related companies way more than all of these fines combined.
Google itself as of this moment never did put adds on a lock screen, it is the manufacturer or third party apps who can do it. Some Realme and Xiaomi phones do it afaik and probably some other brands.
It already blocks me from reading access for some time because of VPN. I have to use libreddit on the web or redreader on mobile to access. This made me lurk reddit less, never had an account there anyway.