Checkout.com interview questions

A few days after I submitted my application I was contacted by someone from the company, who invited me to a call the next week. The day of the meeting they didn't show up without any previous communication. I tried to contact them but I didn't receive any answer. I was literally left alone on a Zoom call. A week later I was recontacted by the same person, who briefly mentioned some health reasons and invited me to another call. At this point I was already dubious but considering that the position was interesting, I decided to accept the invite. The 30 minutes call was a pretty straightforward chat about my current role, the position, the company and what would have happened in the next steps. At the end of the call they said that they would have sent an invite to the next round on Monday. On Tuesday I received a boilerplate email informing me that they decided to move forward with other candidates. Overall it was a very negative experience and a waste of my time. The entire process has been handled in a completely unprofessional way. I don't think that I will apply to any other job here or that I'll suggest anyone in my network to do so.