Unlike in the web client you can choose which account to use when you toot, boost, reply, follow, favourite or send a message, where otherwise the web client uses the account on the server you happen to be logged in.
Update 2018-07-14: For the records, time ago I switched to Mastalab available from F-Droid, and as "backup" client Tusky available from F-Droid as well.
If you use the Riot App (or any other) to connect to the Matrix and communicate, there's now a LibreOffice room that is plumbed with the #libreoffice IRC channel on freenode.net . IRC channels are bridged to the matrix already for some time, but so far you had to type /join #freenode_#libreoffice:matrix.org
in your matrix mobile app, or in the browser app know the bridge exists and select from the list, now you can just search in the available matrix rooms for LibreOffice and join. Or use this invitation link. This should be a convenient method to join a chat with other LibreOffice users for people who otherwise don't use IRC or don't want to install an IRC app just for this on their mobile, smartphone, tablet..
The #libreoffice IRC channel and thus the LibreOffice matrix room is dedicated to user questions around all LibreOffice applications. Join and enjoy, get help and help others.
Es ist nicht so wie du denkst. Es ist schlimmer. Ich habe nur gezeigt, dass es die Bombe gibt über Psychometriken mit Hilfe von Big Data, den Big Five Persönlichkeitsdimensionen, das Ocean-Modell, und was die Strategic Communications Laboratories (SCL) und Cambridge Analytica mit Politmarketing, Microtargeting, Breitbart News und dem Brexit und Trump zu tun haben.
There was no pressure to take it down. Sometimes truth is blunt and needs to be said, but unnecessary to repeat it over and over again. (If you don't know what this is about: you missed it, don't worry.)
I rarely advertise any products, and even though this is not physically available yet: get your USB Nitrokey Storage at Indiegogo until tomorrow. Realized with Open Hardware and Free Software it will enable secure logins, encryption, backups, ... Further information is available at the Nitrokey web site.