false, that fund accounted for 40% of the shares when TSMC was founded. they had to keep selling the stakes to pay taxes.
A government buying a large amount of shares in a corporation to get them started is still a form of capital subsidy - it's taxpayer dollars (or inflation via printed money) helping a company gain value - either through available capital to invest in itself, or by raising the price of other shares that people need to buy to make the company "go". Also, the 6.38% number is correct per TSMC's own FAQ today if that's to what you are referring:
National Development Fund, Executive Yuan
1,653,709,980
6.38%