AnyWebView

preview

Android Framework should be selected in LSPosed.

A webview app must be installed for all users (or in all spaces) to be selectable. Maybe deleting redundant users is alternative.
adb command:
Get USER_ID list:
adb shell pm list users
Each user entry is as follow: UserInfo{USER_ID:USERNAME:INT} , USER_ID 0 is the main user.
or
adb shell pm install-existing --user USER_ID PACKAGE.NAME.OF.APK (for apks already installed for one user)
or
adb push PATH_TO_APK PATH_TO_APK_IN_PHONE (copy an apk file to phone from pc)
adb shell pm install --user USER_ID PATH_TO_APK_IN_PHONE
Delete a user (be careful, you may lose important data):
adb shell pm remove-user USER_ID
All the adb shell pm ... commands above can be run in an Android terminal simulator(root access granted) as pm ...
Reboot to take effect.

Author(s): 
Package: 
com.thinkdifferent.anywebview
Version name: 
1.1
Release type: 
Stable (low risk of bugs)
Number of downloads: 
None yet
MD5 checksum: 
93649c6b3323a9e5c525a8535515be5d
Uploaded on: 
Thursday, May 19, 2022 - 12:22
Changes: 

[New] Android S support

Version name: 
1.0
Release type: 
Stable (low risk of bugs)
Number of downloads: 
6,555 in total · 5 in the last 24 hours
MD5 checksum: 
a17881c305cc53b10b7a2b95b8c851ba
Uploaded on: 
Tuesday, August 20, 2019 - 13:50
Changes: 

[New] Allow users to choose any WebView as the default WebView implementation.