Actually police (and governments) don’t need to purchase your data. They can gather anything and everything from what people share publicly and constantly on social media. Countless numbers of people have been arrested because of what they shared publicly and the metadata included with that share.

If they need criminal info they have immediate access to it.

The concern isn’t that you do something wrong, it’s that the data that you put out there can be used against you in countless ways. Marketing, sales, and so on are the least of your worries. If anyone wants to threaten you, your loved one’s, or even trick you into thinking they are in a threat situation, most people don’t realize how easy that could be with the data they give away daily.

NetBird- tail scale but fully open source with web hi, built in or bring your own auth, clients for pretty much everything, and really powerful network separation and segregation functions, along with posture checks and tons more.