Depends. Is your device fully compatible with win11? Sure, go ahead. But there is a small learning curve if you've never played with it before. If your device is already low end and barely runs windows 10, stay with windows 10.
Everything working on windows 10 as fine. I am just curious to try it but thought to ask first. I am on Device name HP-Pavilion-G6 Processor Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz 2.20 GHz Installed RAM 16.0 GB (15.9 GB usable) and 2 SSD drives.
Yes, check the sticky Win 11 threads. This one can fix all win 11 ISOs (22000.xxx and 2262x.xxx): Win 11 Boot And Upgrade FiX KiT
Sorry, forget about the activation, what is the recommended way to activate it, and get updates smoothly? Does there is another way? I am curious!
Could it be activated using this AIO? https://forums.mydigitallife.net/threads/kms_vl_all-smart-activation-script.79535/
Yes, and by HWID, but if the current Windows 10 is already HWID activated, the Win 11 upgrade will be HWID activated by default (If it's the same SKU).
RUFUS is not needed for upgrades, upgrades don't need a bootable USB drive, just fix the ISO or run the TPM bypass script and mount or extract the ISO to a folder on the installed windows and run setup.exe.