It's entirely fair as there is more possibility of free PC games, or them being of negligible cost since you pay lower platform fees.
This is in addition to the opportunity costs you incur of not buying a PC or having a lower powered PC as a PC can be used for other things (ie, office work, taxes, other productivity tasks).
> since you pay lower platform fees
The platform fees (not required by the way) are roughly the cost of one game per year, if not cheaper. Gamepass being a very different discussion (and is available on PC too)
> This is in addition to the opportunity costs you incur of not buying a PC or having a lower powered PC as a PC can be used for other things (ie, office work, taxes, other productivity tasks).
I don't know about you but I don't want my work PC to be where I relax in the evenings, and many people don't want their employers software or information on their personal devices. I also live in a country where I don't have to fill in my own taxes, and almost all of my personal computing needs are met by my phone.
Work related stuf I do on my work-provided MacBook Pro, that costs me €0. For browsing the web, e-mail and taxes I just use my iPad.