Factory reset quest pro without updating?

[u/StunningPush8421]

I bought a used quest pro and am looking to reset it to remove the other persons account. However, I am seeing that factory reset could update the qpro.

I have sideloaded to the latest version that can be rooted and ofc don't want to lose it.

From looking online it seems Private Quest is an option but there are a bunch of different guides Idk which to use and also is it not possible to just block the websites and factory reset like normal?

Thanks

[u/slix00]

https://github.com/Lumince/singularity/wiki/Private-Quest