Glitchless?
https://www.speedrun.com/portal_2_category_extensions#No_Major_Glitches This is effectively the closest thing to Glitchless.
SAR 1.14.1
Hello, SAR Version 1.14.1 just dropped, adding a cheat command to allow experimenting with floor reportals, as well as a few fixes. You must update your game within 1 week, as after then any runs on versions of SAR that are older than 1.14.1 will be rejected.
Recent runs
Level: Chapter 8 - The Itch
