We do it, but we only move it around, we don’t set up scenes for it each night - who has the energy for that?
The elf arrives with a story book which explains it, and then you give your elf a name.
We have two (because I couldn’t find him one year, bought a new one and then the old one turned up in one of the kids’ stockings), and they arrive on 1 Dec with a present of a Christmas tree ornament for each child.
They move to a different place each night, and they have to find them before they can have their advent chocolate.
I set a reminder on my phone for Xpm to remind me to move them before I get into bed.
I DO NOT post about it on social media.
Easy, and the kids love it, even though they don’t believe in Santa any more.