I saw this! Although the download is not available yet due to site maintenance, it'll be interesting to try on my Intel iMac especially. I also plan to get a PC pretty soon, which will mean I'll be able to test Workstation, too!
The download for Fusion 13.5.2 doesn't (yet) work for me. Get "Account verification is Pending. Please try after some time." at the last step (as do others according to VMware Fusion forum).
But I used "Check for Update" on existing Fusion Player 13.5. Did the update. Deleted the old license file - as in https://www.mikeroysoft.com/post/convert-player-to-pro/. Now running Fusion (I think) Pro 13.5.2. Seems like there is no license required unless you know you need one!
An interesting issue came up as I installed the new Pro version. Since I didn't have the configuration files for Player completely removed, the installer would just install Player over and over again. Here's a quick video I made about how to fix that: https://drive.google.com/file/d/1PtRj0rt3boKJPD2m7g147WBAEoOhzFdR/view?usp=sharing