It’s normal for someone to work more than 40 hrs on salary and some people wear it with a badge of honor. “I have to work nights to get stuff done”… no you don’t unless you’re saving lives or delivering babies. Salaried is great unless you have a hard time finding and enforcing life/work balance.
My work is project finance based. I know a week or so each month I won’t have much on my plate and will get away with 15-20 hrs total. The other weeks I know I’ll work 35 to 50 hours and call it even for my downtime.
I had to change my mindset from a “have to work 40 hrs a week” to a “am I getting what is expected of me done? Yes! Great!” But use the 40 hrs as a threshold to make sure I don’t burn out. It took me a while to accept this as my new normal due to conditioning and corporate PTSD.