自启动的问题查到了
https://bugs.launchpad.net/ubuntu/+source/plasma-workspace/+bug/1793242

cat ~/.config/ksmserverrc

[$Version]
update_info=ksmserver_update_loginMode_value.upd:ksmserver_update_loginMode_value_default_enum

[LegacySession: saved at previous logout]
count=0

[Session: saved at previous logout]
clientId1=1028c1d320b210000166592407400000016290004
clientId2=1028c1d320b210000166572690600000018050009
clientId3=1028c1d320b210000166592461900000016290005
count=3
discardCommand2[$e]=rm,$HOME/.config/session/konsole_1028c1d320b210000166572690600000018050009_1665924678_459908
program1=/usr/bin/kalendarac
program2=/usr/bin/konsole
program3=firefox
restartCommand1=/usr/bin/kalendarac,-session,1028c1d320b210000166592407400000016290004_1665924678_456804
restartCommand2=/usr/bin/konsole,-session,1028c1d320b210000166572690600000018050009_1665924678_459908
restartCommand3=/snap/firefox/1943/usr/lib/firefox/firefox,--sm-client-id,1028c1d320b210000166592461900000016290005

编辑掉，再开机，正常了

白板还不知道哪的问题，不过既然Snap版界面用着暂时正常，就不折腾了

【 在 hgoldfish 的大作中提到: 】
: 用 openSUSE Leap 吧。风滚草是爱折腾的人才能玩的滚动发行版。
: firefox 有空的地方是白板，那估计是因为字体坏掉了。
:
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FROM 60.1.7.*