Just another explanation:i have read the documentation.
i'm not very good at these things so i was wondering if anyone had experienced this before.
thanks anyway.
If a system makes it to the table within the docs there have been successful installations reported. So you can assume it will work. The process is always the same, so I do not know what experience are you looking for or want to share with us.
The OCLP Programm works straight away, the docs are covering every single step and you are free to give it a go. Download OCLP, run and install OpenCore, reboot into the (already prepared) USB installer and install Big Sur to a different partition or different disk. You so not want to overwrite your single working installation, right?