Reputation of Frontiers Journals (Received Invitation Chemistry) A few years ago, the Frontiers family was listed in  Beall’s List of potential, possible, or probable predatory scholarly open-access publishers. At the time, there was a lot of backlash by them and a number of publishers about this addition. Since then, Beall's List has been taken down.

Recently, I received an invitation to contribute in one of Fronters in Chemistry's research topics - the journal currently has a decent JIF of 3.994. I was wondering what the community currently thinks of this journal family?

I am used to receiving spam invitations but this is the first where I have received one where I feel it is more legit, however, I would not want this to damage my record if there is a bad reputation. I am an early career researcher so this makes me more tempted.

A similar question was asked back in 2014 with some negative responses, but I would like to see how the times have changed:
An invitation from Frontiers (Frontiers Research Topics)
In my opinion, Frontiers journals are only modestly predatory. They are clearly for-profit, and seem to have a journal for every sub topic, not to mention the constant invitations for submission and ‘special issue’.  However, they’ve done a pretty good job maintaining reputation, though it certainly differs per-journal. An impact factor of ~3 isn’t that far outside middle-tier, non-profit, established journals. If it helps, I have a publication in the top-tier journal Neuron in 2012 with 156 citations and a pub in Frontiers in 2014 with 120 citations. So worry less about it being ‘frontiers’ and worry more about writing a solid work.