I’m sure this will draw some criticism but I’ve found duck.ai to be extremely helpful in troubleshooting minor issues with my Linux mint installation and recently with accessing and understanding SMART hard drive diagnostic data. It’s very helpful in figuring out which commands could be useful in the terminal and in understanding exactly what each terminal command is doing. Of course finding answers in forums and manuals is still relevant and important but as a beginner, this has been a fast and easy way to get advice.
My brother in law was still using windows 7 and it had never occurred to him that this might be a security risk. Normal people don’t care.