Awesome work @humprof - it looks like the total entries have almost doubled, from 682 to 1348 (!)
The only thing I'd suggest is changing the format separators from commas to slashes ( "/" ) - you can do this in Excel by selecting the whole format column in Excel, then go to the Find & Replace menu, Find , Replace with / and then Replace All. This will make it match the formatting of both the (glorious and impeccably maintained) quad engineers listing and also the surround polls.
Maintaining this should get easier going forward as starting with the 2021 Surround Releases thread, @haikubass has wisely added a Surround Engineer column, so you have a one-stop place to find all the newest entries.
Good suggestion, easy fix. It may add a little ambiguity here & there, as individual formats sometimes already include a slash (as in Atmos/Auro-3D BDA, or 24/96 DTS-DVDV), but I don't think it should be too confusing. (Rationalizing & regularizing the format names--there are quite a few variants--is something I might also try to do, incrementally, in the future, along with adding release dates to old entries.)
And yes: I forgot to thank @haikubass, from whose 2021 Surround Releases thread I already lifted a couple of titles!