Chrome only dropped support for H.264 because it would incur patent fees which many consider incompatible with the way web technology has developed previously.
They didn't, for example, drop support for Theora which like the image formats you name, is older and has less advanced compression technology but is still "free" in many senses that some consider important for interoperable web technologies.
They didn't, for example, drop support for Theora which like the image formats you name, is older and has less advanced compression technology but is still "free" in many senses that some consider important for interoperable web technologies.