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No that's just not true. I left a company years ago on good terms to join a (semi established) startup. 9 months later it turned out to be a real shitshow. I talked to one of the senior managers at my former company and they gave me a really great job offer. More senior than previous and with a pay rise above the bump I'd gotten going to the startup.

Stayed with that company for another 4 years (7.5 in total). It'll vary based on a lot of factors. Very few employers would begrudge someone going for a huge pay rise FAANG opportunity, and the fact that they got the role means they're good material.

As always it's going to depend on a huge number of factors. It doesn't have to be negative though.

[TedDoesntTalk]

Your story is different. You left for a significant time then returned. That’s not what OP is talking about.

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One of the great things about humans is the ability to take one experience and abstract it to gain knowledge about others. In this case I was implying (as was my sibling comment) that resigning isn't necessarily impossible to undo.

Highly depends on their behaviour and value to the company and colleagues. If they're valuable and well liked it could be an option.