The only thing I could see Brandy doing right now that would have some sort of impact is rush BACK to the studio and craft a song that speaks to the time we are in. Make sure it's simple, lyrically powerful, and something borderline gospel to avoid a Beyonce comparison. Then release it
I personally know if she does more interviews, they're just going to ask her the same questions. I don't think Covid performances really have impact (for any artist). She's not a insta-live type of artist. Even fashion photos don't seem as significant during a time like this.
She should release a new video the day before the album, do a small media run, and wait for this pandemic to ease up.