Despite all the links in the article, I didn't see one to the official announcement which contains useful information:
<a href="https://blog.chromium.org/2024/05/manifest-v2-phase-out-begins.html" rel="nofollow">https://blog.chromium.org/2024/05/manifest-v2-phase-out-begi...</a><p>"Based on input from the extension community, we also increased the number of rulesets for declarativeNetRequest, allowing extensions to bundle up to 330,000 static rules and dynamically add a further 30,000."