The following widely used texts agree with having אֲנוּ
1)The Jerusalem Crown: Keter Yerushalayim (pg. 467)
(2) The Biblia Hebraica Stuttgartensia, (pg 867)
(3)Rabbi M. Breuer’s Tanakh( שנט or pg. 359 )
(3)Meïr Halevi (Letteris) Tanakh (pg. 812)
(4)Norman Henry Snaith’s Tanakh (Pg. 776)
These three popular versions leave אנו unpointed
(1) C.D. Ginsburg Tanakh (pg. 912)
(2) Koren Tanach (pg. 430)
(3) Adi (A. Dotan) Tanakh (pg. 712)
(4) The Stone Edition of the Tanach (pg. 1172)
(5)The JPS Hebrew-English Tanakh (pg. 1115)
TanakhML Project and the online Westminster Leningrad Codex 4.14 have אֲנַ֜חְנוּ in the text with אנו as a subscript. however, both also display other choices. If you click on אֲנַ֜חְנוּ in the TanakhML it will open another page with variants.
What you wrote is missing an important piece of context, which is that probably in all editions, this word has both a qere and a ketiv.
Thus, I think what you are identifying is just different ways of presenting qere and ketiv, not real differences in what these editions think the “right” or “best” text is.
Bdenckla again thank you for the feedback!
Also, thanks for pointing out the double or near duplicate post.