I'm just going to go hide sheepishly behind my little office computer
Regarding the desktop machine usage scenario:
Currently, if I need Windows XP or 7, or simply need an additional computer with separate accounts, its own system ID, and so on, I simply use a separate computer. So, I have nine computers, most of which are my old laptops and mini PCs, plus three Orange Pis (luckily, these three only require a browser, so I don't have to delve into settings). If I could throw all of this in the trash and use just one computer with several virtual machines, that would be fine. Using a separate computer for transactions, a separate computer for "white" communication, a separate computer for "black" communication, a separate computer for work, and so on, isn't so simple.
So, I need a computer that can accommodate all of this, although I certainly won't be running all of the virtual machines simultaneously. And one of these virtual machines needs to have sufficient hardware resources for working with 3D. + I want to learn how to work with artificial intelligence.
As far as I understand, miracles don't happen, so an old computer won't do.
There's a second scenario for a laptop. This involves everyday Linux tasks and 3D work in a virtual machine. Since it was said that Lenovo is Linux's best friend, I looked at the "Lenovo Legion 5 15IRX10 - 83LY00C4IV - Core i7-14700HX RTX 5060 1TB SSD 32GB RAM" (100% SRGB - the main things I liked about this device). Will I experience any hardware issues with this laptop under Linux?
That's a lot of computers 
I would definitely consider a VM for some of those things if you can. Less clutter lying around.
Like others have said, using virt-manager along with Virtual Machine Manager is better than VBox (virt-manager is the underlying engine, VMM is the GUI that you interact with). It takes a little while to get it set up, but once you do, it works well. Both Grok and Perplexity did well helping me fine-tune the settings in it to work with my system.
And speaking of AI, you said you want to work with it. All the machines you've mentioned with big GPUs will likely be sufficient. I've got an older system with an RTX 3060 in it, and it does great for LLM chats, music, and image production.
That Lenovo Legion 5 15IRX10 looks like a dream computer. With something that new, I'd probably run Ubuntu 26.04 on it when that's released on April 23. Zorin has an older kernel and would likely be more frustrating than it's worth. Fedora will give you the best Linux experience if you were to go out and get it today. But in the long run, if you have Fedora-specific problems(such as with the GPU), then Ubuntu 26.04 will likely play more nicely with the NVIDIA GPU than Fedora.
The main Linux pain points on gaming laptops like this are usually:
- NVIDIA graphics switching and driver setup.
- Power management and fan behavior.
- New laptop-specific components that may need a recent kernel (i.e., Fedora or Ubuntu 26.04).
You might consider trying Fedora 43 with KDE Plasma (from a live USB session) just to familiarize yourself with the system. Some aspects of the interface will feel more like Windows 10 -- though it certainly isn't Windows!
Expect a learning curve and some frustrations along the way. I find Linux to be better overall, but it takes some time to adapt to it.
Yes, a lot, and it irritates me. I know Windows has never been a secure system, so I use a separate computer for transactions (which only accesses the internet during transactions). My credit card information isn't on any other computer. This is also the only computer that contains my passport information and all my passwords. Another computer is for work. A third is for "white" communication, a fourth is for "black" communication, and the third has three old operating systems installed (Windows 98, XP, and 7), and so on. All of this is connected via three KVMs and a kilometer of wires. But I want one machine in a nice case.
But I don't know if I should buy used server equipment from China, where I can install two Xenon processors and 16 bars of DDR3 RAM, or build something on Ryzen 9 or i7 and limit myself to two sticks of DDR5 memory at 64GB each and a regular AMD or Nvidia graphics card, instead of a server-grade Tesla. (Since even in the high-end price range, I can't see a motherboard for a regular PC that can run at x16 with two graphics cards and an M2 SSD simultaneously.)
Okay, thanks for the info. When I get the laptop, I'll try Ubuntu with KDE Plasma. Maybe that will work.
I would checkout users submitted hardware probes here:
But she want you believe what she sayed but sometimes AI lieying.