Master-Passwort bei jedem Neustart des PCs und Notebooks

Hello 1P_Gem, here an update:

After my feedback above 15 minutes ago, I thought by refering to your answer to try one more time with TPM. I did everything exactly like yesterday and it didn't work. After restarting and logging in with Windows Hello, the prompt for the master password was displayed again in 1Password. Yesterday I stopped at this point because I was fed up to enter the over 20 character lenght password again and again. When I tried again some minutes ago, in opposite to yesterday, I entered the master password. Then the Windows Hello input field was displayed again and I entered this again too. After the next restart, it worked. So it's a success. Thank you very much.

Now I have to ask you one more question: How security-relevant the warning "When this setting is on, a malicious app could gain access to your 1Password information." is? I've read a lot about it in the forum, but I'm not the IT nerd with the huge understanding. Therefore - is there a simple statement as to whether it represents a really questionable risk or whether the risk is rather small?

Thanks again.