Justin By then clicking on the New Window button, I can put a new instance of Vivaldi in the empty workspace I've previously selected. In all I have three workspaces where an instance of Vivaldi runs on my laptop... one for financial matters, one for the Solus forum and related sites, and one for miscellaneous browsing, such as online shopping.
You make completely valid points here. There is no reason anyone has to run multiple instances of anything. The reason I do it is mostly to avoid the desire to click on my web panels or bookmarks "just to check" on something that will lead me down a rabbit hole.
So separation is one reason for running multiple browsers. Another is that I do want to support Firefox as much as possible. Their Gecko browser engine is the only other option outside of Chromium-based Blink and Apple's WebKit. I love Vivaldi but I feel that we should support Mozilla Firefox in whatever little way we are able to in order to promote competition.
The same extension (LastPass) is used by each instance, as are all the same settings, and I've needed to do only one installation and configuration. And I needed to learn well only one browser's secrets and idiosyncrasies.
You should absolutely NOT be using Lastpass. They have a long, long history of security breaches. There were breaches in 2015, 2019, 2020, and just this year.
They are the worst of the worst when it comes to securing your passwords.
I used to pay money for Dashlane but they refused to create a Linux app and so I left them. Dashlane is a great service and I would have loved to give them my money but they were holding me back from migrating to Linux so I ditched them.
Right now I use Bitwarden. I could not be happier. Their 2020 Audit had a few issues that needed to be addressed but they have not suffered any data breaches (that I am aware of) and they are an open source project.
Bitwarden is available on every single Browser and Operating system.. as a Flatpak, Snap, on most Linux distros, macOS, Android, and Windows, and there is a dedicated browser extension for Firefox, Chrome, Opera and iOS.
It is vastly superior to Lastpass. It functions quite similarly but the autofill is disabled by default. That autofill that makes Lastpass seem so great is one of their biggest security flaws. If you want it on Bitwarden and you are willing to take the risks you can turn it on though.
I REALLY suggest you make the switch to Bitwarden. It is easy to export your passwords from Latspass.
Since I have been using Bitwarden I have not had any issues at all with keeping my passwords up to date. They have a password generator that I use quite often, and a password history so you can view the changes you have made to your passwords over time. I pay for the Premium version to support them. With Premium you can use Bitwarden not only as password manager, but as a TOTP Authenticator like Authy. And instead of having to look at your Authy for the two-step codes you can have Bitwarden handle it all.
I haven't gotten around to doing this yet but I have so many freaking passwords and accounts with two step. However.. After making the switch from Authy to Bitwarden TOTP it would make my life tremendously easier.