Then again, we all trust our "smart" devices even if we really don't.
I suppose a separate network would be the safe option (if you trust your router).
That said, have there been rotten meat attacks using "temporarily above temperature" fridges?
Are vegans just applying a defensive strategy against those?
When I grew up, I had one PC to do everything: Homework, gaming, learning to program, storing the single copy of treasured family photos, gaining painful experience in why to make backups before modifying the MBR to dual-boot Linux...
Especially with iPads and Chromebooks becoming more prevalent in an education context, a "gaming PC" might well be the only computer that gives the user full control over it that many children have access to these days.
On the one hand, buying a console and a reasonably spec'd laptop is clearly the better value. I did this during college, and both my laptop, and my console both lasted about a decade without requiring any upgrades. I did this again with the PS4. You wind up spending far less than you otherwise would trying to keep a gaming pc reasonably up to date, and both devices are optimized for their usage.
On the other hand? At some point most of us will realize that we've been successful enough that we don't have to optimize for value, and we can choose 'all of the above'. I now have a PS5 AND a stupidly overspec'd AI / gaming desktop. I've enjoyed having both.
Nowadays for 50€ you can have a decent second hand computer with an older gen core i5 and 8 to 16GB of memory. That is plenty enough to run qubesOS.