Same here; been disabling it since it was introduced to Fedora... a release or two ago.

My desktops have 64GB+ of memory typically, they're virtualization workhorses. I don't know what it is in oomd, but any time I make actual real use of it, things started getting killed.

Zero memory pressure. Talking sections of 60+GB free, so it's not fragmentation either.

The grouping of the entire session the link suggests seems likely