从 Ubuntu 21.10 卸载 openboard

我的收藏夹列表中显示了 openboard，我想将其卸载。我尝试了以下方法：

$ sudo apt remove openboard
[sudo] password for user1:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package 'openboard' is not installed, so not removed
0 to upgrade, 0 to newly install, 0 to remove and 10 not to upgrade.

和

$ sudo apt purge openboard
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package 'openboard' is not installed, so not removed
0 to upgrade, 0 to newly install, 0 to remove and 10 not to upgrade.

但是该软件仍然在收藏夹中，我仍然可以运行它。

当我运行软件时，我可以看到它运行如下：

$ ps -aux | grep "openb*"
user1 9615 0.4 0.0 3620 1128 ? S 22:14 0:00 bwrap --args 37 openboard
user1 9626 0.2 0.0 3704 1436 ? S 22:14 0:00 bwrap --args 37 openboard
user1 9627 8.5 0.4 2017184 140220 ? Sl 22:14 0:00 openboard
user1 9678 0.0 0.0 9152 2404 pts/2 S+ 22:14 0:00 grep --color=auto openb*

问题是，如何完全移除 openboard ？