for the power menu it's an Xposed module here
Look I'm not saying this to be an ass or anything like that it just needs more structure dev or not...if I wasn't the dev I would of setup this post properly with changelog some screens and make it look nice you don't have to be a dev to do that.. and it's based on the official samsung rom hmm interesting so what about those tweaks that were suppose to work from the get go? I can add those exact tweaks through magisk and xposed.. it's throwing alot of red flags for me and so many questions so I'm just gonna wait for some progress before I touch this..I've been in the custom rom game since my galaxy s5..Read the OP, its based of stock Samsung ROM, in this instance is based on Android 11 (https://www.sammobile.com/samsung/galaxy-s20-fe/firmware/SM-G781B/#SM-G781B)
Read the Op and his subsequent posts fella, Ubimo is not the dev. He donated an S20FE to the dev to get a custom ROM developed. But if you want to want for the dev to post in the ROM forum that's your prerogative.