Uganda is overwhelmingly Christian.
Uganda has been doing fine in terms of economic development.
https://data.worldbank.org/indicator/NY.GDP.PCAP.PP.CD?locations=UG
To be sure, Uganda is still classified as low income by the world bank; and could use some improvement in terms of economic freedom and its Freedom House rating.
There is an interesting aspect of Uganda’s economic collapse and partial recovery. Amin scapegoated and then expelled the Asian merchants who held key positions in Uganda’s economy when he took power. The economy promptly collapsed - cut by 50% by some measures. When Amin was overthrown, later presidents tried to get the Asian merchant class to return with mixed success but their return really helped get the economy back on track.