Basically, it only needs three steps.

• Download the OS ROM specific for your phone from pixelexperience.

  https://get.pixelexperience.org/

• Download the TWRP specific for your phone from twrp.me

https://twrp.me/Devices/

• Flash the TWRP to your phone via lsdy

https://lsdy.top/gjzs

• Using the TWRP to install the pixel like OS to your phone

https://en.wikipedia.org/wiki/TWRP_(software)

https://www.bilibili.com/video/BV1rm4y1L76V/?spm_id_from=333.337.search-card.all.click