It’s not just the tools, looks like some teams at G Data are not too competent. The software is too branded, too much with its own identity. Users no longer care about your branding nonsense, they want service. G Data is far from the software-as-a-service model, on the website (when you click on the product) they mention “The 2020 edition of G Data”. They still use the editions model.
I don’t see to many reasons for someone to go for G Data and not Bitdefender.
To answer
@JB007 — no, these tools are not efficient. They all need a total makeover.