I don't see the point.

I built a gaming rig and i play my games on it. Thus no reason to separate accounts.

Now if i had underage kids who i didn't want accessing mature content, i MIGHT make a separate account and install just their games on that account. But that seems unlikely. Emulation is a beautiful thing where everything is kid friendly (for the most part).

Well, my PC is a pure gaming PC (Core i7-10700K, GeForce RTX 3080, 32GB RAM, 500+1000GB SSD etc.), so I don't see the reason why I should treat games like something different than the main use of the gear...

Every single game does ask for it when installing them from Galaxy. Sometimes more than once as additional components are required.

How about a separate account just for non-game purposes?

(For example, a separate account used just for web browsing, or for work, or for a gamedev hobby.)

Personally, i have a chromebook for that stuff. It's lightweight, carry/use it anywhere and even at low CPU power it is sufficient even for watching videos and playing music while doing say data entry programming or other things (and yes i've done all of these)

Also Windows 10 remember you can't just add accounts willy-nilly unless you're connected to Microsoft, so you're DRM'd from making new accounts. Real fun...

Why would I need that? I have an operating system with actual administration controls. laughs

I can even change what bootloader I use without it getting changed back.

I have a computer whose specs are comparable to that of a Chromebook (except that I was able to upgrade the storage), and I *have* played games on it.

Also, gamedev isn't something I could see working well on a Chromebook, given how locked down they are, and how the official way to run desktop Linux uses a VM, limiting graphics performance. (I can do it on this laptop, assuming I'm targeting lower end machines, of course.)

(I also have a Raspberry Pi, and it can run many older games, like Dungeon Hack, via emulation.)

Never said you couldn't. But it's fairly weak compared to a desktop. Also depending on how it schedules the CPU it can have more audio glitches than usual.

Actually chromebooks are fairly open, by going to dev mode (which will wipe it) you can swap the BIOS, boot a Linux OS or completely replace the OS. Though it really doesn't want to boot an OS from the internal source unless it's ChromeOS. Though it's safer to install Crouton (Unbuntu parts) and just run an OS from that.

Though how much the graphics processing it can do it's hard to say.

Nah, I only have two accounts on my PC: one is my admin account, the other is my main account which runs as a standard account for security purposes.

Other than that, I keep my games organized via Galaxy and all of my game shortcuts are in folders organized by game genre.

No. What for? I don't even need a Windows password on my PC.

Some possible reasons:
* To avoid distractions (it might not be so tempting to play a game when you're supposed to be working if you have to login as a different user)
* Security (prevent a buggy or malicious game or web browser from accessing your work files)
* Keep browsing history separate (does the web browser really need to suggest uesp.net when you need to do research on Ubuntu for work related stuff, or vice versa?)
* Need to test a particular configuration, but don't want to mess up your main account. Or need a particular configuration for some applications, but that configuration breaks others.

(Note that some of these can be served by getting an extra computer, but that's expensive.)

I'm not a child.

Any software is full of bug, Windows is a cesspit of bugs, I have never had any security issues in the last 10 years or so.

What?

You know, they invented emulation and virtual machines.

What does that have to do with my point?
Software can be buggy, but by using some mechanism of privilege separation, you can mitigate the impact of those bugs. Hence, this would be a good reason to use a second account, not a reason not to.
Except that:
* Those are heavier and more work to set up than just making another account. (Remember that you'll likely have to make a user account in the VM.)
* VMs can't (easily) access raw hardware.

Hence, while VMs can be useful for this case, they're sometimes overkill, and are definitely more work than creating a second account.