Your public IP stays the same for long periods of time, is geographically tied, and also associates you to certain ISPs based on your address space. How long does it stay the same? Months - Years potentially depending on the lease set on the IP.
every website logs ip. The question is whether the admin maintains those logs. However a web server needs your IP so they can route traffic back to you. That IP gets logged so that if something is not working the admin can review the logs and figure out what is going on. Many websites that are privacy focused either turn the logging off or dump the logs fairly quickly. Doing something like that means the admin needs to take steps to create other avenues for troubleshooting that don’t factor user data into the scenario. With smaller projects like instances hosted on lemmy that might not always be feasible for volunteer admins. This doesn’t necessarily mean they are doing anything wrong. Lots of websites maintain logs that include IP addresses.
Yes and I will add to this… Just degoogle your phone and slowly stop using Google services. Even this is not a perfect solution but its better than doing nothing.
I’ve had a brother laser printer for 8 years now. Recently my wife was asked “can we get a color printer” and I said but we have at least 5+ years of toner left in this thing!