Is 10 ETFs too much?

Is investing in 10 ETFs really considered excessive? Could having this many ETFs in my portfolio potentially pose any risks? Are there any benefits to diversifying across such a broad range of funds? Or would it be wiser to focus on fewer, more targeted investments? How does the number of ETFs I hold affect my overall financial strategy? Could I potentially overcomplicate my portfolio by having too many ETFs? What's the ideal balance between diversification and simplicity in ETF investing? Would it be better to consolidate some of my ETFs or continue to expand my holdings? How do I know if I've reached a point where I've diversified too much or not enough?