Hi, the user data are always in the home directory, /home/.config/vivaldi or /vivaldi-snapshot for example.
.config is a hidden folder like Appdata on Windows.
The browser is installed in the /opt directory like Chrome or other non system browser.
To change the install or user data path it is some Linux knowledge needed, a regular user don´t do this, an advanced user know already how to do this.
So remove 5.6 and install 5.5 should not be a problem, the user data is not touched.
I started using PWAs a few weeks ago. For now, i only use 3:
Google Docs (you can even use it offline with it's offline extension)
pomofocus.io: Great free pomodoro tool - you can assign pomodoro sessions to specific tasks and see reports of your usage later.
And not only should one use a desktop environment light on resources, also check the motherboard battery, if you use an older system.
My 13-year old desktop powered on this morning, but, the manufacturer screen where it indicates to press F10 to enter the BIOS, would not appear. The last time this occurred (a couple of years ago), I removed the battery to reset the CMOS and reinserted it. Then, everything was fine until this morning. Repeated the battery remove/reinsert, but this time it had no effect. This was with the original battery.
Purchased a two-pack of the batteries (this motherboard takes the CR2032) and installed a new battery. Screen to enter BIOS then came up. Fixed the date and time and made the necessary other changes in the BIOS. Rebooted and it's working again. 🙂
My windows 10 system fonts are all IBM Plex Serif and also a chrome extension forces IBM Plex Serif. With your css script now everything uses the IBM Plex Serif. But of all websites I ever visited only google chrome extensions store forces some of their fonts. But that's just a minor inconvenience, since youtube and google search engine itself are working like intended with my fonts. Thanks!
I've started to limit to 50/100 selecting "Home" for the temporals.
Did it before also but went too far 😄
Still prefer the "Bookmark all" instead of individually xD
Maybe V Team adds the option at some point 🙄