First I would like to apologize as I'm a newbie. I would like to know whether is there a manager app or where I can access the Boeffla Wakelock Blocker v1.1.0 and Wireguard v1.0.20210606 ?
I've successfully installed the kernel via TWRP > Magisk(TWRP) > Kernel Flash(TWRP).
Thanks for the effort!
Any kernel manager should work for the wakelock blocker, but it's not something you should be using on stock firmware. It is a legacy feature that originated when wakelocks were poorly managed and currently exists only as a last resort for broken functionality that comes from poorly designed or modified drivers.
As for Wireguard, there is an official app