I will be using Win10 for dev and audio purposes, then I’ll install Linux on my main PC too, not just my ThinkPad.

Here are some Windows 12 rumors (pulled from one of the biggest German-language tech news sites citing insider information)
https://www.computerbild.de/artikel/cb-News-Windows-12-Geruechte-Release-Systemanforderungen-Download-2025-33395891.html

• It won’t come out this year, release may be end of next year at the absolute earliest.
• It will require PCs with a Neural Processing Unit that can handle more than 40 billion TOPS, 8GB RAM minimum, 16 recommended.
• It may eventually require an ARM-based “Copilot PC”, a new device class released last year.
• It will be modular, with a core OS and additional modules depending on edition, licensing, hardware and use case.
• It may have a read-only system partition.
• It will be focussed on AI and cloud integration, heavily leaning towards OS as a service.
• It will be free to install as an upgrade, with a monthly subscription to run it.