Are there crypto exchanges with no fees?

Are there truly any cryptocurrency exchanges that operate without any fees at all? It's common knowledge that many platforms charge transaction or withdrawal fees, but could there be some that manage to offer their services completely free of charge? It's an intriguing question, as the absence of fees could potentially attract a significant number of users. However, I'm curious if these no-fee exchanges would be able to sustain themselves in the long run, or if they might have to compromise on security, reliability, or other essential services in order to keep costs down. Additionally, I wonder if the term "no fees" might be a bit of a misnomer, as some exchanges might have hidden costs or limitations that users should be aware of before signing up.