You should find the License Agreement and read it but unless it's changed recently, you can, in fact, install it on one more machine, like your laptop or something.
However, you don't need to worry about that for your rendering question. You can have many other machines with Max installed as a Render Node and use them to render for you. I laughed out loud about 10-years ago when I was reading something where Autodesk apologized that there was, in fact, a limit to the number of render nodes Max/Backburner could have and that you could use, the limit was 10,000 machines...again...lol....
Until I started using Render Farms exclusively two years ago, I had 6 machines in my render farm and only had one Max license. It worked perfectly. It just got too expensive to keep upgrading them as technology accelerated.
Find the current License Agreement but I think you'll be OK unless that's been changed. It's irritating that VRay and others charge huge fees for a render node license. Autodesk is fair about that one thing and never has as far as I know.
Rob Holmes

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3ds Max (2023-2026), V-Ray 7, Ryzen 9 9950X3D Processor, DDR5 128MB, Gigabyte Aorus X870E Master motherboard, Sabrent Rocket NVMe Gen5 M.2 drives, NVidia RTX 4090, Space Pilot Pro, Windows 11 Pro x64, Tri-Monitor, Cintiq 13HD, Windows 11 x64
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