MyBlood In this case I don't think this data is so relevant, since the grace that Skiff has is that you can save your account and information under the IPFS decentralized protocol, that is, if you save your information centrally in Skiff servers this data you ask for would have great relevance, but if you choose to decentralize your information from the configuration of your account, your information is distributed by the IPFS global network, so in theory no specific legislation can be applied to it.
However, we could assume that Skiff is located in the USA, based on what we read in their privacy policy. They don't say it specifically, but in the International Data Transfer section it specifically mentions the USA, leaving it apart from the rest of the countries:
International Data Transfers
All information processed by us may be transferred, processed, and stored anywhere in the world, including, but not limited to, the United States or other countries, which may have data protection laws that are different from the laws where you live. We endeavor to safeguard your information consistent with the requirements of applicable laws.
Although it is really an ambiguous assumption, and as I said, the grace of Skiff is to decentralize your information via IPFS, so... that's it.
