Got the legion for Christmas been loving this device its being used as main pc its nice powerful and versatile love using tablet mode and fps mode, tablet mode js also good when connected to a monitor
As it running windows 11 I did small debloating highly recommend to only do this its very unlikely to break anything
On fresh install make sure everything is updateded and uninstall all the apps you don't want / bloat apps
run Chris's Titus run recommended only : keep tracking
Stop start up apps you don't wanna run
Install portmaster: Essentially like a adblocker but on windows work on everything and boost any related internet speeds
install Microsoft pc manager: Free up ram manually or automatic and clean storage and temp end apps you don't wanna run easy
Optional
Disable core isolation: Only recommend if you only do lite browsing and such
Manual un install widgets and phone link and anything else needed via powershell
Install Kaspersky: one of the best antivirus and its free and lightweight
Danger:
Do not run thisiswin11 or bloatynosy you are gonna brake stuff even with minimal stuff selected just do above
It also have a nice battery life wish custom tdp be fixed soon and more power saving stuff added
Around 8 hours watching and lite browsing power saving mode
Around 4 hours gaming with doom eternal forza 5 and hellow knight power saving mode