Not a lawyer, but there are a lot of crimes that are not felonies. Speeding 10 mph above the limit in a 65 mph zone - not a felony. Reading hacker news for an hour during work time and not being paid $800/hr - not a felony. Calling in sick when you are hung over - not a felony. There is no federal tax on gifts for the giftee. Indeed, I suspect there are a surprising number of crimes that could get you jail time that are not felonies. Insider trading - it’s a felony, which is why people in companies with insider trading information are told they cannot trade at certain times.
I’m pretty comfortable believing I have probably not committed more than two or three felonies in my life. (Don’t want to find out I am wrong.)