Here are a few options for a formal title, depending on your focus:

• EU and UK Impose Sanctions on Russia Over Cyberattacks and Disinformation Campaigns
• European Union and United Kingdom Sanction Russia for Malicious Cyber Activities and Disinformation
• EU and Britain Sanction Russian Entities for Cybercrime and Disinformation Operations

Recommendation: The first option is the most standard and widely used in journalistic and professional reporting.

Here are a few options for a formal title, depending on the level of detail you prefer:

• EU and UK Impose Sanctions on Russia Over Cyberattacks and Disinformation Campaigns
• European Union and United Kingdom Sanction Russia for Malicious Cyber Activities and Disinformation
• EU and UK Jointly Sanction Russia Following Cybercrime and Disinformation Operations

Recommendation: The first option is the most standard for formal journalistic or professional reporting.

Here is a formal rewrite of the title:

Obsidian Entertainment Director Addresses Misinformation Regarding Studio Practices