Germany has a fundamentally different system. If you're unemployed, you can take a "mini job" or "midi job" (up to 405/1300 Euros respectively, they are lower maintenance for businesses and have no/low/blanket contributions to social security) and the first 100€ will not affect your benefits, only 80% of whatever you make on top of that will be considered. It does not really change anything, so that's apparently not what's holding people back.
According to that report, that experiment only paid people 560 euros a month. That's not enough to make staying home and playing video games an option.
The point was that the study didn't provide a livable UBI so it doesn't provide evidence about the effects of a livable UBI, in particular, whether it would reduce hours worked. This study was just a little extra money, enough to improve the life of an average working-class person but not really enough to enable them to choose to work less.
Firstly, this probably isn't correct, see this recent report from Finland: https://twitter.com/rcbregman/status/1258336749828419584
I'd also point out that the current situation forces an "all or nothing" employment system. In Aus, if you're working part time you don't quality for any benefits, so the incentive to work while on unemployment is lowered. However, with UBI, there _is_ incentive to work. You can double your income by taking up a part time job, instead of getting the same amount from working as you would from unemployment.
I'd also challenge you and say why do think reduced working hours is a bad thing?
Also, what about all the people with a lot of money who don't work?
All your arguments have been made before and discussed in depth.
> The problem being that our economy depends on these people performing such jobs.
The economy should serve the people. Shareholders may depend on it though :)
Your "inflationary spiral" theory is also unfounded, and has been shown previously.
> Why work overtime at McDonalds when your rent is already paid up for the month and there are so many fun video games to play?
This is a terrible strawman, but also maybe MCD should pay better or offer other incentives? They're not owed employees.