Hi,
I honestly recommend installing version 25H2 until version 26H2 is released (there is no scheduled date for it yet). Version 25H2 is stable and with fewer bugs; if you install version 26H2 right away, you might encounter bugs during the initial days, as early adopters often face issues.
In contrast, version 25H2 has been out for a while and is currently stable.
If you do encounter bugs after updating to 26H2, you can revert to version 25H2.
I recommend performing a clean install of Windows version 25H2 using the USB method.
Please consider rating the question (accepting the answer or not) and visiting the Microsoft Q&A community if you have further questions.
Thanks.