I just went ahead and did it, can you guys all upvote it so it goes up in the priority list:
On the feedback hub, it seems only "Suggestions" can be upvoted. Any listed "Problems" cant be upvoted, and unfortunately, you listed the issue under problems.
thanks for noticing that, i have now made a new one > https://aka.ms/AA9yj4v can you please upvote this one guys
It doesn't allow.
It seems you need to convert your standard Microsoft user account to an "Insider Preview account" to upvote, post, comment on the feedback hub.
Mine was an Insider preview account and I did upvote it. Cheers