Kimiblock [1] filed a request to merge wechat-beta-bwrap [2] into
wechat-uos-bwrap [3]:

This package is basically wechat-uos-bwrap, with no sandboxing which
means this proprietary app can obtain any system data or user data

The reason why wechat-uos-bwrap doesn’t come with beta in name is the
fact that the app doesn’t recognize itself as a beta

[1] https://aur.archlinux.org/account/Kimiblock/
[2] https://aur.archlinux.org/pkgbase/wechat-beta-bwrap/
[3] https://aur.archlinux.org/pkgbase/wechat-uos-bwrap/