Dex builds are already monstrously superior to strength builds due to the utter void of decent heavy armor on top of all the advantages Dex gets in 5e. They don't need to also be able to use the strength weapons better too.
If anything I'd want to tweak dual wielding rules to allow a longsword in the main hand as long as a light weapon is in the offhand just to make strength dual wielding somewhat viable before 4th level.
Last edited by SaurianDruid; 28/10/20 10:39 PM.