My memory of arriving in Lagos in the early 2000s was seeing a very dirty Nigerian Airways DC10 partially sunk into the mud at the side of the runway.
More recently, earlier this week flew Manchester to Dar es Salaam via Doha with Qatar. No departures from MAN a good while to each side so security was a breeze – straight through with no queue. Aircraft was a quarter full A359 so plenty of room. Cabin crew wore full body suit including hood and goggles as well as masks. Full service provided.
Similar for the A320 DOH –DAR except this flight was full. On arrival in DAR, sign a form and temperature check. All handled efficiently.
Then a domestic flight on a Dash 8 Q400. Flight 90% full. Cabin crew wore masks and no service (usually a bag of cashew nuts and tea/coffee in a cardboard cup or alcohol). Temperature check on departure and arrival.