Well the main reason why the metric caught was there were many many mny versions of older systems in place. You may have heard a french inch was different then an English inch. But it was way more complex then just that.
Even in a single country different industries could all use a gallon but have it be different. Need 39 yards of rope for your ship? Well is that paris or vince yards? Also better remember the currency conversion.
Having one system was better since everyone could now agree on how long something was. This is also why metric time failed to catch on. Everyone agreed on days, weeks, years etc etc.
You can use a degoogled phone. Poxel phones can ise graphene os. Other but not all phones can use lineage os. And murena makes a phone that can use their e os
Well to be fair the left in the usa does have another reason to see the libertarian party as just another right wing party. They vote republican when it comes down to D vs R
Rumor from many many years ago would be Samsung