how to install SteamOS?

i tried everything: ventoy, disabling secure boot, changing launch options nothing is not working. I watch the many guides not help

My specs:

8gb ram

ryzen 5500u with radeon graphics

nvme umis rpjtj256mee1owx

radeon (TM) graphics

My laptop is v14 g2-alc laptop (lenovo) - type 82kc