Once your basic needs are met, the equation becomes: Salary = Expenses + Savings. So, the questions becomes, how much savings makes you happy?
If you are happy to work in your job until “retirement age”, a small savings rate will do, in theory; that is if the salary is adjusted for cost-of-living and tax.
Are you happy working this job for the rest of your life? Full time (whatever that means in your work culture)?