No. Spreading resources across every platform typically results in low-quality presence everywhere rather than strong presence where your customers actually spend time. Platform selection should be driven by your customer demographics and the type of content that represents your business well.
For most Finger Lakes businesses serving local consumers, Facebook and Instagram cover the majority of the relevant audience. LinkedIn adds value for businesses with a significant B2B client base. Community Proud assesses your specific customer demographics and recommends the two or three platforms that justify the investment, rather than spreading thin across all of them.