Yes, Tell Dell should be viewed as telling Dell if you still want to work there. I was laid off a decade ago 100% based on TD feedback. Honesty = laid off.
No one at this company is interested in truly improving the workplace; management and HR are all cogs in a machine going through the motions of a complex set of technical checklists put in place decades before them for the purpose of being compliant with local and federal laws and protecting the "company" from lawsuits. Everyone, including your manager, is afraid to lose their job and no cultural change will ever come from a TD survey or this company. It's all farce and you should never view a TD as a way to make your voice heard. Worked there for 15+ years and never saw one iota of real change or reflection that resulted in a better place to work based on a TD survey or just discussion about project post mortems.
You should mark positive scores across the board on those surveys and never fill in the free form text boxes. Best guess is that for lower management results are anonymous but the higher you go up they can see who responded with what. Even in an anonymous situation your manager is likely to pick out your review based on free form text feedback.
Also Dell's way of deciding who's valuable or not is a war room situation and the only one on your side is your manager. I was a "top performer", such a stupid term, and moved to a new manager when my old one left this one year. The new manager accidently CC'd me on the email chain with a bunch of managers that included every developer at the company and each was marked with scores and what they felt our skill level was. I was a principal software engineer at the time and was marked as being mid-level. lmao. Your fate is 100% in the hands of a manager with no technical experience, doesn't care what your skillset is prior to being at the company, nor during your tenure at the company and doesn't account the projects you've completed, that literally saved the company millions, as an indication of your contribution.
Dell is a dinosaur and were you go to have your dreams die, your skillset put down and to be in constant fear of losing your job