Some potential explanations off ghr top of my head...
- I happened to get lucky on my last 5 journeys
- Many people how have more flexibility about when they start/end work, even if they're not working remotely
- People are avoiding public transport due to worries about COVID and increasing crime
- Outside of peak hours, buses still need to run with some minimum frequency to be a viable option, so they often run empty or with only 1-5 passengers
- I happened to get lucky on my last 5 journeys
- Many people how have more flexibility about when they start/end work, even if they're not working remotely
- People are avoiding public transport due to worries about COVID and increasing crime
- Outside of peak hours, buses still need to run with some minimum frequency to be a viable option, so they often run empty or with only 1-5 passengers
You could come up with others...