VFW wrote:

Glucagon, cortisol, adrenalin, growth hormone and thyroid tend to
increase the blood sugar

They come together with increased blood sugar. That's not the same
thing as blood sugar causing them.

Glucagon moves fat out of storage. It is works at low insulin levels so
it's action is suppressed by insulin.

Cortisol is more associated with stress than blood sugar. It is true
that blood sugar swings are stressful but they are not the only cause of
stress. Adrenalin is similiarly released to both stresses and to
dropping blood sugar.

Thyroid output is reduced by very low calorie or extremely low carb
eating. it's one of the main drivers of the metabolic reduction often
called "starvation mode".