A bonus is a bonus. Presumably this is on top of whatever they had before, so an extra $20K to $45K per year is icing on the cake.
In reality, most engineers aren't bouncing around from company to company every year trying to squeeze every last dollar out of their compensation. The strategy works well for a few iterations in early careers, but eventually it starts becoming counter-productive.
If you have 10 jobs in 10 years on your resume, every hiring manager who sees it will instantly recognize that you're a job hopper who isn't likely to stay longer than a year. It also becomes difficult to really accomplish anything big if you're always leaving a company before you can really hit your stride.
Most people I know who end up at FAANG level companies are interested in sticking around for at least 3-4 years, if not longer. This provides the chance to accomplish bigger things, build an actual reputation within the company, and move up the in-company career ladder. Jumping to other companies for a $10-50K immediate bonus could be shooting yourself in the foot relative to sticking around long enough to get a promotion and retention awards.
In reality, most engineers aren't bouncing around from company to company every year trying to squeeze every last dollar out of their compensation. The strategy works well for a few iterations in early careers, but eventually it starts becoming counter-productive.
If you have 10 jobs in 10 years on your resume, every hiring manager who sees it will instantly recognize that you're a job hopper who isn't likely to stay longer than a year. It also becomes difficult to really accomplish anything big if you're always leaving a company before you can really hit your stride.
Most people I know who end up at FAANG level companies are interested in sticking around for at least 3-4 years, if not longer. This provides the chance to accomplish bigger things, build an actual reputation within the company, and move up the in-company career ladder. Jumping to other companies for a $10-50K immediate bonus could be shooting yourself in the foot relative to sticking around long enough to get a promotion and retention awards.