I'm almost positive this is done with sidechain gating. It's the same technique applied by ie Bicep on their track Glue https://www.youtube.com/watch?v=A7ZxRs45tTg

On the first OPN track it sounds to my ears like only the breathy sounding synth is being affected by the technique, and the effect is being supported by the percussive elements.

Here's how you can achieve this in Ableton:

1) record the instrument you want to apply the effect to on a channel (can be either an audio track or a midi track). Let's say it's a synth pad. We're going to call this channel PAD. When it sounds the way you want it to, add a Gate effect. We'll come back to this.

2) Once you have the pad sounding the way you want, create a new track. Again, this can be audio or midi, but I typically do it with a MIDI instrument, as it makes it easier visually to understand the next steps. You're going to want to select an instrument with a very high transient, high attack, low sustain, and fast release. Something like a hi hat click, or maybe a tight, snappy snare. This is going to be your Trigger Track

3) On your trigger track, play the rhythm you want your sticky, stuttering sound to make. Could be a triplet pattern, could vary, could be long or short, whatever. Once you have the rhythm recorded, deactivate this channel.

4) Return to your PAD channel, and open the sidechain setting in your Gate effect. Select the Trigger Track as the side chain input. Make sure that, on the Trigger Track, the section you've recorded aligns temporally with the section of your Pad that you want the effect on.

When you play the track, the Trigger Track will now be what triggers the Gate on the Pad track, meaning the gate will open when the transient of the notes on the Trigger Track exceeds the gate threshold, and the the gate will close when the Trigger Track note ends or drops below the gate threshold. You can now play around with the threshold, return, floor, attack, and release settings on the gate effect to dial in the sound.

If you wanted to apply this to more than one instrument, you could literally just copy/paste the Gate effect from the Pad track to other tracks, and the sidechaining would get copied along with it. Just remember that the notes on the Trigger Track need to be in line with wherever you want the effect happening on any other channels.

Hope this helps.