Still not clear what this daemon does...

And when you say switch display between HiDPI and LoDPI, what does that do? If it's a high-DPI display, does it emulate a low-DPI experience, for example by scaling/zooming / using 2 output pixels for every 1 in the input picture.

Is this the same as the fractional scaling feature?

The GUI for it:

• lets me enable/disable (what happens if I disable?)
• Change Mode: "Enable to render LoDPI displays at HiDPI resolution". What does that mean?

I tried disabling both of those options but

1. hidpi-daemon was still running
2. I noticed no visible change

So I just killed the process. Again, no visible change. So again, what does this daemon actually do for me? What is the benefit of having it running? (I'm not the only one wondering: https://www.reddit.com/r/pop_os/comments/lwsf4a/hidpi_daemon/ , https://www.reddit.com/r/pop_os/comments/lxpfpl/hidpidaemon_was_a_huge_battery_drain_for_me_had/ )