Bro, huh?
I did just search on Milankovitch cycles and all the links showed 4 cycles:
https://en.wikipedia.org/wiki/Milankovitch_cycles
Orbital eccentricity
The major component of these variations occurs with a period of 413,000 years (eccentricity variation of ±0.012). Other components have 95,000-year and 125,000-year cycles (with a beat period of 400,000 years). They loosely combine into a 100,000-year cycle.
Axial tilt (obliquity)
The angle of the Earth’s axial tilt with respect to the orbital plane (the obliquity of the ecliptic) varies between 22.1° and 24.5°, over a cycle of about 41,000 years.
Axial precession
Axial precession is the trend in the direction of the Earth’s axis of rotation relative to the fixed stars, with a period of 25,771.5 years.
Apsidal precession
The orbital ellipse itself precesses in space, in an irregular fashion, completing a full cycle every 112,000 years relative to the fixed stars.
You got me there! I actually did look up Milankovitch Cycles on Wikipedia, but only to get the spelling correct. I didn’t read enough to find the quote you listed.
I’ve been going by articles on Ice Age Cycles indicating that the approximate 100,000 year Ice Age repetition rate is third order of the longest Milankovitch cycle, not once per cycle, and also the start of the Ice Age, some 500,000 years ago is unexplained. Maybe Wikipedia has something here. It’s often too Left biased to be meaningful.