The well-known and reputable website "ToS;DR" describes the Vivaldi service in detail
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“Terms of Service; Didn't Read” (short: ToS;DR) is a project started in June 2012 to help fix the “biggest lie on the web”: almost no one really reads the terms of service we agree to all the time."
https://tosdr.org/en/service/2371"Vivaldi
Klasse B-
User logs are deleted after a finite period of time
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You maintain ownership of your data
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The service will not allow third parties to access your personal information without a legal basis
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IP addresses of website visitors are not tracked
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The cookies used by this service do not contain information that would personally identify you
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This service does not sell your personal data
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User suspension from the service will be fair and proportionate. "
etc.
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