How to play Ubisoft games without the Ubisoft Launcher:
Step 1) If you’re an EU citizen, sign this petition: https://eci.ec.europa.eu/045/public/#/screen/home
If you are not in the EU, you can check if there are any other initiatives for your country here: https://www.stopkillinggames.com/
Step 2) (Due to insurmountable pressure, which you definitely did your part in adding to, video games are now forced to have an end-of-life plan.
Step 3) Wait until the game you want to play without the Ubi Launcher hits its end-of-life
Step 4) Do whatever is necessary to get the game playable again, which the newly introduced law guarantees is possible
Step 5) Enjoy your game without the Ubi launcher
Fennec, which is a Firefox clone, and I use it because it allows (allowed) me more customization than the default Firefox.