deleted by creator

Changelog

[New][Mail] View Filters are confused for being a Mail Action Toolbar (VB-95308)
[Address bar] Engine icon is often not displayed in search field (VB-94157)
[Address bar] Search Field dropdown remains opened (VB-98720)
[Address bar] Emojis as favicons appear blank (VB-81544)
[Address bar][Bookmarks] Display folder nickname (VB-98925)
[Calendar] Subject of event not visible in the reminder window (VB-98736)
[Chromium] Upgraded to 116.0.5845.59
[Crash] When adding vivaldi://discards as a speed dial (VB-98877)
[Downloads][Panel] Google Safe Browsing causes downloading to get struck (VB-96539)
[Feeds] Icon disappears when page loads (VB-50729)
[History] Shows http entry after https entry on a redirect (VB-26114)
[Keyboard] Cycling focus stuck when tab bar is hidden (VB-95976)
[Keyboard] Focus Panel Controls has stopped working (VB-93688)
[Linux] Vary Process names to ease use of tools like killall and top (VB-99065)
[macOS][Media] Poor video performance (VB-81757)
[Mail] Cannot mark all mails as read in custom folder (VB-94347)
[Mail] IMAP folder names not decoded from UTF-7 (VB-98829)
[Panels] Closing floating web panel hides the sidebar unexpectedly (VB-98621)
[Panels] The scroll bar is covered by the side panel handle when it is set on the right side. (VB-98065)
[Panels][Workspaces] Not all Workspace functionality is available in the Window Panel (VB-98479)
[Performance][Clock] Button can slow down the creation of tabs (VB-83297)
[Performance][Downloads] Progress animation stresses GPU (VB-98841)
[Spatnav] Box is moved on scroll (VB-89443)
[Speed Dial] Fast bookmark drag+click may block pointer events (VB-98930)
[Workspaces] Button title spacing wrong (VB-99111)
[Workspaces] Loudspeaker icon on Workspace tab keeps appearing and disappearing (VB-97425)
[Workspaces] Make sure tab opens in the last-open workspace when started (VB-96702)
[Workspaces] Moving tab to new window switches workspace in existing window (VB-98804)
[Workspaces] Replacement tab from root workspace moved into active workspace when moving original tab in Window Panel (VB-99014)

deleted by creator

Oh,forgot to mention there is support for sharing screen and separate window on desktop. Unsure about mobile clients.

If those you wish to have a video call with already have each others phone numbers then Signal is a option. It supports up to 40 participants. Available on Android, iPhone, Windows, Mac and Linux.

Signal has other great chat/messaging features too.
Also a unofficial community on Kbin