You can, part of the script corresponding to its UI is proprietary, but UI code is written in plain, accessible code for those who read HTML, CSS and JS and even moddeable by the user, but can’t be forked legally by Chrome or EDGE (🖕) nor by other browsers. It`s something like open proprietary freeware. There are no logs, tracking or any other crap. nor third party investors. Sync ee2e no-knowledge. The rest is OpenSource with several different licenses, specificated in the source package. As all other browser, collecting anonym statistical data (country for lenguage settings, OS, needed tecnical data)

https://vivaldi.com/source/

I use Vivaldi and Zen as second. I need the sync function and I don’t want an Mozilla account, nor an third party solution. Vivaldo offers full sync ee2e no knowledge in the own server in Iceland.

The Portmaster with its SPN is a good approach, apart of the encrypted DNS which Portmaster use, the SPN permits a difference to an Normal VPN, to use simultaneous different servers for different websites

In Spain a lot of baanks offers paying apps, apart there are also a lot of free EU paying apps, eg.

• https://www.taler.net/en/index.html
• https://wero-wallet.eu/
• https://sumeria.eu/en/

You can find more in AlternativeTo, there you can filter also by the country of origen.

https://alternativeto.net/software/paypal/?license=free&origin=eu