We’re never going to get the old days back.

Nothing is stopping you from using a computer as a standalone machine not connected to the internet. Then you have a machine just like the ones in the 1970’s and 1980’s except for having much more memory/processor/diskspace etc. I would say you have a better OS also, except that Linux is basically the same OS as my SCO Xenix 386 I had in the 1980’s.