Trackpad and scaling Issue when installing Windows 10

[candid hound]

𝐌𝐨𝐝𝐞𝐥: Lenovo Legion Pro 5 Intel
𝐃𝐞𝐬𝐜𝐫𝐢𝐛𝐞 𝐭𝐡𝐞 𝐢𝐬𝐬𝐮𝐞: I tried to install Windows 10 on the laptop; however, once the OS finished installing from my usb (official from Microsoft website), the trackpad didn't work. Also in the display settings, it scales by default to 100% which is very small (By default, it should scale to 125 or 150, so likely indicates an issue with scaling too)
𝐖𝐡𝐚𝐭 𝐡𝐚𝐯𝐞 𝐲𝐨𝐮 𝐭𝐫𝐢𝐞𝐝 𝐚𝐥𝐫𝐞𝐚𝐝𝐲?: Tried to reset the pc (wipe everything) and reinstall
𝐖𝐡𝐞𝐧 𝐝𝐢𝐝 𝐢𝐭 𝐬𝐭𝐚𝐫𝐭 𝐩𝐫𝐨𝐝𝐮𝐜𝐢𝐧𝐠 𝐭𝐡𝐞 𝐢𝐬𝐬𝐮𝐞: When the laptop finished installing windows 10
𝐃𝐢𝐝 𝐲𝐨𝐮 𝐢𝐧𝐬𝐭𝐚𝐥𝐥 𝐧𝐞𝐰 𝐝𝐫𝐢𝐯𝐞𝐫𝐬 𝐨𝐫 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞? Installed the driver for Mouse but didn't work
𝐂𝐚𝐧 𝐲𝐨𝐮 𝐩𝐫𝐨𝐯𝐢𝐝𝐞 𝐢𝐦𝐚𝐠𝐞𝐬/𝐯𝐢𝐝𝐞𝐨𝐬 𝐭𝐨 𝐬𝐡𝐨𝐰 𝐮𝐬 𝐭𝐡𝐞 𝐢𝐬𝐬𝐮𝐞: N/A

[final lagoon]

You are supposed to install Windows 11 on Gen 7+ devices

Yours is Gen 10

dont avoid it, just install it

and to have a working trackpad, you also need to install Intel Serial I/O driver

[candid hound]

oh, so gen7+ do not support windows 10 at all?

[final lagoon]

drivers are for Windows 11 since Gen 7

even older models got Win11 updates for drivers

[candid hound]

So I installed Windows 11 , and now the trackpad is working, but I cant change brightness using function key.
Also, for a few seconds, my screen went dark and it automatically changed the scale to a higher value, then after <60 secs, it went dark again and reverted back to normal scaling.