I ask a similar question a few years ago. This was the response I got from a WCG tech Knreed back then:
"Secondly, something that should be considered is the amount of computing power that is being usefully applied.

The Top 500 list is based on a specific set of tests run to compute the theoretical max power that the computing system can provide when running at 100% capability. In reality super computers don't run at 100% usage nor do they have something running on them 100% of the time so their actual delivered computing power is less than the number reported on the Top 500 list.

With BOINC based projects, using the method above (which I will re-iterate is something that should be considered suspect), it is taking the actual delivered computing power that has been applied and using that to measure the computing power of the grid.

That means that it is not an apples to apples comparison."

Based on WCG points per flop we are doing 1,613 TFlops over the last 14 days. I always felt that with WCG I was getting a more accurate number then F@H, which i still run on my GPUs.

I agree. The people at WCG are doing the best they can with limited manpower at their disposal, but marketing the project to prospective new crunchers needs to be somehow improved. WCG lost a lot of longtime crunchers when they changed the progress bar page. And now we have a situation where instead of rising numbers of contributors, the total is slowly falling.
On 20 June 2019 WCG had 43,819 active users. (thread about it here )
Today, I just checked at the same website, we have only 41,643 active uses, despite the boost we should have got from the Covid virus publicity.
Yet there are billions of devices out there, many of them running downloaded computer game apps. I think we need to add an element of fun to recruit more members. And to motivate contributors to stay with the project, as many download the app, let it run for a while, only to quit a short time later. We need to overcome the suspicion that its is a scam, and to reward crunchers and make them feel appreciated, more than they currently are. My immediate suggestions would be downloadable, printable official WCG award certificates when certain milestones are reached. And a return to progress bars similar to the ones that motivated us in the old days. They were great motivators, those old progress bars! They mainly motivated people to stay until a badge was in reach, but we also need something to get people to join up. Maybe if a few celebrities started endorsing WCG, that might get a few peoples attention.

Well, you should have at least linked a BOINC project, since there are many with printable awards.

The only BOINC Project I have is WCG.....

Same here