Good thing restricting side-loading isn't legal in the European Union! Not a problem here. Apple had to enable side-loading on their EU-based phones and so will Google if they restrict it.
Yes it is, and no they didn't. Apple has to allow (heavily restricted) alternative app stores, and I'm not clear on whether any actually exist right now.
What Apple restricts and is legal are not the same. Apple is doing malicious compliance and the legal system ain't buying it. But it takes some time and iterations to shake out.
They have moved much faster on much more complex plans though. If this is a case of Apple breaking the law then surely they wouldn't need over two years to tell them to stop it? The EU regulations seem largely to be, you need to do X and you need to figure out how to comply by Y date. They aren't gently guiding these corporations to compliance.
So I'm leaning more towards Apple is in compliance and the common perception is incorrect. Which is fairly common when it comes to laws and regulations of any country.
The kind of "side-loading" of notarized apps outside the manufacturer's app store that Apple allows in the EU is exactly what Google proposed to do for all its Android builds. We don't want that.
If a lawsuit tackles this problem in the EU, will we finally also see somebody go after MS for their obnoxious code signing certificates?
While MS code signing certs are more circumventable for power-users than Android's new approved developer program, their pricing is far more prohibitive for independent OSS developers and hobbyists, costing hundreds of USD per year.