Now sudo apt-get update returns this:
Uwe Brauer <oub(a)mat.ucm.es>
7:56 PM (5 minutes ago)

I don't care much about the google stuff
but
N: Skipping acquire of configured file 'deps-r14/binary-i386/Packages' as
repository 'http://mirror.ppa.trinitydesktop.org/trinity/deb/trinity-sb focal
InRelease' doesn't support architecture 'i386'
N: Skipping acquire of configured file 'main-r14/binary-i386/Packages' as
repository 'http://mirror.ppa.trinitydesktop.org/trinity/deb/trinity-sb focal
InRelease' doesn't support architecture 'i386'
Worries me
Here are the other warnings, not sure what to do

W: Target Packages (main/binary-amd64/Packages) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target Translations (main/i18n/Translation-en) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11-icons-hidpi (main/dep11/icons-64x64(a)2.tar) is configured multiple times
in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target CNF (main/cnf/Commands-all) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
N: Skipping acquire of configured file 'deps-r14/binary-i386/Packages' as
repository 'http://mirror.ppa.trinitydesktop.org/trinity/deb/trinity-sb focal
InRelease' doesn't support architecture 'i386'
N: Skipping acquire of configured file 'main-r14/binary-i386/Packages' as
repository 'http://mirror.ppa.trinitydesktop.org/trinity/deb/trinity-sb focal
InRelease' doesn't support architecture 'i386'
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target Translations (main/i18n/Translation-en) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11-icons-hidpi (main/dep11/icons-64x64(a)2.tar) is configured multiple times
in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target CNF (main/cnf/Commands-all) is configured multiple times in
/etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
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