I know Chromium is not popular here, but if you're interested in any Chromium variant, such as Vivaldi, and you miss Firefox's Multi-Account Containers extension, make sure to check out this feature request in the Chromium Project and add your input: https://issues.chromium.org/issues/40896879
chromium
Are there any web browsers that are NOT chromium that support PWAs?
I know Firefox said they're looking back into it a few weeks ago for desktop. But I figure that'll be a while. Currently I'm using a base chromium fork for my desktop, but wondering if there are other options.