Curious how various people integrate a freeflowing love and heart centered affection and sensuality throughout their lives and in relationships with all those we care for, not just one monogamous partner?

One of the commonly expressed beliefs about poly being healthier and freer than a sexually monogamous relationship style is that monogamy stifles and inhibits a fuller, free flowing healthy expression of love from oneself.
Thereby supposedly inhibiting our flow of love, acceptance of our feelings and sensual natures and embodiment.

I can feel some potential truth in that view, while also feeling its short-sightedness and erroneous assumptions at the same time.

Ive only been poly for short periods of time. Usually sexually monogamous, while poly loving - still feeling deep and full love, affection and appreciation for others generally and for some specifically.
Am totally into complete openness, honesty, love and supporting everyones freedom to do whatever it is that we each feel we really need and want for our own lives. While really expressing our love and respect for ourselves and those we relate with by not trying to manipulate or control another through deceit or dishonesty about who we are, choices we make and want regarding relationship styles, sex, partners, other aspects of our lives and choices...

And for those who used to be poly, but later chose and continue to live fulfilling, many loving sexually monogamous relationship style, why the decision to go mono?