most famous among them is ChipMixer charging relatively low fees.
ChipMixer is donation based. So one can even use it for free. Of course, he has to pay for his tx fees, but that's all. Donations help provide better privacy, for example, but not a must.
Your long wall of text is not going to impress the members here
That's correct. It looks
at least unprofessional, which is already a warning sign. I didn't even bother to check deeper.