Explain what the 1.75x means?

It's leveraged long, so the ETF aims to recreate 175% of the movement of MSTR So if MicroStrategy goes up 10% in a day, the ETF should go up 17.5% on the same day (and similarly for declines)

Thank you for the clarification. Would that not make the stock more volatile even though the company is a stable company.

Yes