Definitely agree with you. I was from GS ops and sharing what I know.

GS ops offer 5k/month because it's hard to attract talents into ops. GS have been facing extremely high turnover rate for grad hires in ops and thus they believe that by bumping up the salary, they can reduce this turnover rate. 3 month bonus is only for this year where across all banks, bonuses have been high. GS is also readjusting rates and it is a one-time thing only. On average, expect to work more than 10 hours in GS ops, obtain a not bad base salary and a 1 month bonus max on normal years.