What an interesting question! I suppose we can say that even a fact that we consider as objectively true (e.g. gravity) is nothing more than a perfect agreement in opinion between several subjective observers. A group of, say, houseflies that can walk up walls would come to a different "objective" agreement about gravity that is the consensus of their subjectivities. So I guess there is only ever subjectivity, which can be grouped or shared into what we describe as objectivity?
Objectively speaking about subjective experiences can be challenging due to the personal nature and individual perspectives involved. However, there are strategies that can help facilitate a more objective discussion. These include clarifying the distinction between objective and subjective elements, using descriptive language, providing context and background information, seeking multiple perspectives, recognizing personal biases, and using qualifiers and disclaimers. The goal is to foster understanding and respectful dialogue, even though complete objectivity may be difficult to achieve.
Speaking objectively about subjective experiences is a challenge that involves both the ability to express and understand because it depends on the perception, interpretation and evaluation of each individual, and which, therefore, may vary according to their feelings, values, beliefs, expectations, memories, among other factors. For example, happiness, love, pain, fear, beauty, justice, among others, are concepts that can have different meanings for each person, depending on their subjective experiences.
Therefore, speaking objectively about subjective experiences is possible and desirable, as long as we are aware that they are an integral part of human communication, and that they can be enriched and improved through a language that expresses them in a clear, precise, coherent and adequate way.