For whatever reason, I found a personal limit when I was hitting a fair amount of intensity and volume in the same session, on the same lift, 3x a week. Everything was just hurting, and it had some effects on my mood.
One option would have been to just drop the frequency down to 2x a week, for that lift trained like that. Another option was to just separate the "heavy" and "volume" work from each other on alternating training days. I didn't explore those though.
I have found that some amount of "volume" work is necessary for me to make progress. My current view (which I've seen elsewhere too) is that you need both types of work to make progress: you need the volume work to build muscle, and the heavier work to learn how to better use the muscle. The first is more structural, and the second is more neural.
If you use heavy work all the time, without ever dipping outside of that, you get really efficient at using the muscle you have, but eventually you hit a point where you can't get much more efficiency out of things. That's the point where you need to do something to build muscle. At least that's been my observation.
I don't have enough experience to know what works well for concurrently working on both. For the small amount I've used my current routine, it's worked well. Basically the structure is to do some heavy work first, 5 reps at ~85%, then a single at 90% and 92%. This basically "ramps up the nervous system", getting all the motor units firing. And then finish with an AMRAP set at 65% focusing on maximal time under tension. Once you hit 20 reps in the AMRAP set, bump the weight up on all sets and repeat. I haven't used it long enough to know how sustainable it is long term.
Assuming this continues to work well, I'll likely continue to use the same ideas, if not the exact same structure.