Not even.It works until you are investigated and authorities find out the director/shareholder is a nominee, then the company is treated as transparent and the nominee is bypassed attributing the ownership and control of the company to you.
Seychelles is really big on sharing information with foreign governments even when there is no count order.
Seychelles isn’t an option for such uses as OP describes anymore. Any self respecting intermediary knows this.
Seychelles still has its place in structures when it comes to superyachts and private jets. Anything else .. avoid them like the plague.
Also its extremely difficult to open any bankaccount with a Seychelles entity.