Unfortunately, this can easily backfire. Make sure it is clean, sure, but at some point you are going to take time cleaning and it won't be appreciated at best. At worse, you are going to be told it took you to long to do the work. This is coming from someone who, at a foodservice job, had someone teach me how to mop. Their standards - for mopping anyway - were quite a bit lower than the standards I grew up with at home. It hasn't just been that establishment, either: Everywhere has some of this.
I'd much rather see someone be told, "Do well, but there is no need to be perfect. Be efficient where you can". This goes so much further and besides, most folks expect the new person to do a few things that are a bit off.
Not being fussy about the work you do, though: Solid advice. I've generally tried to do something other people dislike, if possible.
> demonstrating a strong work ethic will get you noticed and earn you a good reputation that will pay back many times in the future.
No, this is an exception rather than the rule. Depending on your employer/manager, a strong work ethic may or may not be noticed. If it's noticed, it might even impact you negatively since you'll be the guy who can be abused and overworked in the future especially if you can't speak up for yourself. The other options are that nothing changes with your work ethic or that you're rewarded in some way. In the cases that you are rewarded, it's more likely that your employer is giving you meaningless tokens, praise and/or more responsibility rather than actual perks or increased compensation.
But you should have a workplace you like, because that is key, from my point of view.
Silly example I agree (they won't ask you to clean the bathrooms... probably), but demonstrating a strong work ethic will get you noticed and earn you a good reputation that will pay back many times in the future.
I've had interns who get surly and moany when they don't get asked to work on machine learning to cure cancer and turn lead into gold, but got asked to fix some unit tests or something else unglamorous. They become a real pain to work with because you know they'll complain about whatever you give them so you end up just giving them scraps or at worst basically giving them nothong and letting them spend their time on tiktok or whatever because it's less hassle than trying to satisfy their ego. Don't be that person who makes a fuss for being asked to do real-world work and you'll go a long way.
Good luck