@tomey No... I use Thunderbird for my RSS. But I do not for time being having any need for using on more than one device. Pity that Nextcloud fails, which otherwise should be good choice. I wonder, when Thunderbird sync comes, if that has any chance to sync btw devices (but likely not your need). Vivaldi browser has RSS support, but I guess that is also not what you need. Sorry, no real knowledge or suggestion.