Use bold sparingly
Bold Unicode works best for one headline or a few keywords, for example the first line of a LinkedIn post. Whole paragraphs of it are harder to read and invisible to search: platforms and search engines treat ππ¨π₯π as different characters from bold, so a styled keyword will not match someone searching for it.
Screen readers may read each letter as βmathematical bold small bβ, which is another reason to keep it to short phrases.