So for port forwarding you need the port on the router the host and the port the traffic should get forwarded to on the selected host.
So you are saying, when exposing a host then the host is reachable over internet but when using port forwarding it is not?
How you check this? What commands/procedure?
Because in the local/private network are many hosts, like your phone, pc and your server. Exposing means that the device that is exposed gets basically everything forwarded what usually the router would handle. Exposing does expose a host to the WAN.
Forwarding a Port only forwards the specified ports. You can use multiple hosts for that. For example you can port forward port 80 to your Phone to port 321 or whatever and port 443 to your server at port 20.
Host exposure does what it says, exposing the host. Thats not port forwarding.
A port is not secure or insecure. The thing that can lead to security risks is the service that answers that port.
Use strong authentication and encryption on those services and keep them up to date.
I hate when i have to go 4 links deep to get an explanation of what it even is.
The simple point is, no one forces you to use wires. Bluetooth has been a thing for decades.
But basically every (yes some exceptions) company that makes phones forced you to use wireless ones.
And in the case of Fairphone it is just simply hypocritical.
Let's not forget this here.
https://www.youtube.com/watch?v=bRdL0StldJM
Wired headphones do not have the need for replaceable batteries.
If the CPU died, the PC would not have booted up so far.
A lot of IDEs would probably throw a warning about unreachable code.
The 3B+ was probably the high of the raspberry pi. It is still pretty much unrivaled in terms of idle power consumption and energy efficiency (or at least i have not seen any other SBC that got below 0.5 Watts on idle) on the consumer market.
But i have trouble investing further into them.
No you are mistaken with "Or $5 mire to own it". You own a license to watch for the amount of time the platforms decides to keep it up.
https://prometheus.io/docs/introduction/overview/
would fit all points.