No, they aren't, and your source doesn't say they are. This is your source's description of the type of trademark that Meta has on X (AN ILLUSTRATION DRAWING WITH WORD(S) /LETTER(S)/ NUMBER(S) INSTYLIZED FORM):

> This Type is similar to “STANDARD CHARACTER MARK” in that it can only include words or phrases, and not images, however it does include a claim as to the particular stylization (font) and may, but do not have to, claim color. For example, the trademark “NETFLIX” written in stylized red font.

Edit: The source below is a bit more clear on the differences.

https://www.mavenip.com/blog/standard-character-mark-or-logo...