Bluetooth Earphones Always Start at Max Volume on iPhone

I’ve been facing this problem for years now-

every time I connect my Bluetooth earphones to my iPhone, the volume shoots up to a really high level.

When I use the same earphones with my PC, the volume is perfectly balanced, so it’s clearly an iPhone issue.

I even tried switching to a new pair, but nothing changed. It’s annoying having to lower the volume manually every single time I connect them.

(rarely like very rarely, it sets the volume properly but i have got this trauma of checking the volume everywhen cuz if not then the music is blasted into my ears..)