Gut impression as Editor:

the # of new manuscript submissions per day has dropped slightly in the last 3 weeks.

the # of reviews & AE decision recommendations coming back in has dropped a lot.

If you are submitting papers now, please also step up to review

How to 'volunteer to review'?

1) Pick 1-3 society journals you'd like to review for

2) Email those journals' Associate Editors who specialize in your area of expertise. They pick the reviewers. They get the papers you are most likely to be suitable to review.