I have installed the version 188.8.131.52 for MS Edge as administrator (although renamed to another name - could it matter?) and expected it will be available for all users, but it isn't. Probably each one has to install it again instead of switching it on only.
I know it isn't crucial for the proper operation, but still I think it would be more logical and less demanding for the computer maintenance (and may be for disk space too) to install it only once and then individually to setup it only for each user.
Thanks for your useful extension and your evaluation time.