I never booted windows on this laptop, I installed Fedora 41 kde spin immediately. Was pleased to find the Fedora software updater also handles Lenovo system firmware updates.Ran Kdiskmark and the samsung nvme was getting reads around 3500mbit/s so I'm happy with disk performance. Smart shows it's only been used mildly.Overall this thing runs smooth as butter. I have no complaints there. The keyboard is a pleasure to type on, lots of little details just feel correct. Even having removed the secondary battery, runtime was not awful on battery.The Bad: One of the speakers is very crackly, I just set my audio to go full right channel. Replacements are cheap, but this seems to be an issue with these that recurs often. I'll be using wired or bluetooth headphones mostly anyway.The Secondary battery was shot. The laptop wouldn't charge at all, and would shut off if power was removed. It showed primary battery at 100% and second at 70% and not charging. I let it charge overnight, nothing changed. Also tried resetting the cmos. I eventually just pulled the secondary battery out, and that cleared it up. I only get around 5 hours battery without it, but the replacement is only $20 I'll get it eventually. Also due to the USB C charging ability I am able to keep it plugged in most of the time even when mobile so It's not been a huge bother.