I use the semicolon as a super-comma, when I really want to make a point. Like typing in all caps, it draws attention to the superiority of the statement.
I also use the smiley face a lot.
;)
I have a family member who was an English teacher for umpteen years. She would adore this grammar discussion on semicolons and so forth. Wish she were here now, because I do not have her abilities to comment on grammar rules.
Just so I can hold up my end of the conversation, FWIW, here are some:
https://www.grammarbook.com/punctuation/semicolons.asp