Please help - creating word document in Office online & Office app on computer launching problem

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this message is displayed in edge after logging in here: https://www.microsoft.com/pl-pl/microsoft-365/free-office-online-for-the-web to https://www.microsoft365.com/?auth=1 when I click on Word Blank document on my computer

In firefox it is

Unable to open document
We created a document, but it can't be opened. Copy the link below and open it in your web browser.

Correlation ID: 9195e098-7298-478c-a60c-17cf7ece4ee6 (changes every time I try)

and when I click on Microsoft 356 (Office) in the start menu bar it quickly flashes the messages "Unfortunately, There was a problem loading this app." with subsequent "id"s and "correlation ID"s

The Office app on my phone allows me to log in and create a word document with my credentials.

As instructed during a chat with Microsoft technical support I cleared cache and cookies in my browser, restarted my computer and the above described problems persist. Technical support instructed me to post here and left the chat.

Can you help?

Thank you