User with sufficient rep can see all recent reviews in some review queue: https://meta.stackexchange.com/review/close/history
User with lower reputation can still see a specific review if they have a link, for example https://meta.stackexchange.com/review/close/49400. (A link to a review can be obtained from various places, for example, timeline of a post, recent activity for a user who reviewed a post. Or simply by trying to enter link in the above format.
I want to ask whether the numbers of reviews grow consecutively. (For example, I linked above to a review numbered 49400. Does it mean that in some of the review queues, there will be review with number 49399?)
I did at least a bit of testing myself, and I was able to find reviews numbered 49400 and higher: 49400, 49401, 49402, 49403, 49404, 49405, 49406, 49407, 49408, 49409, 49410, 49411, 49412, 49413, 49414, 49415, 49416, 49417, 49418, 49419.
So the answer seems to be very likely yes, but it would be nice to have some official confirmation.