It does work with the current version of the game, I use it for the things listed above, as well as skipping the 24 hour wait for TLSQs.
This is the link, though you should probably look up a few tutorials before using it. It's worth noting that I use it on the bluestacks emulator on my PC, and that the process you need to select is the "Hogwarts Mystery" one thats usualy between 1-2GB.
Most of the values are "DWord" with XOR encryption, meaning you can't just edit one value right away. After finding the right value, if you select "GOTO", the value 2 below it is the encrypted value, and the value 2 below that is the key.
There are some tuturials, such as
this from point 6 onwards, that go into detail about how to use those values.