Do I need modular repos on desktop workstation?

For the last two weeks I can’t update my system via dnf update because of an error:

# dnf update -v
Loaded plugins: builddep, changelog, config-manager, copr, debug, debuginfo-install, download, generate_completion_cache, needs-restarting, playground, repoclosure, repodiff, repograph, repomanage, reposync, system-upgrade
DNF version: 4.2.5
cachedir: /var/cache/dnf
Unknown configuration value: failovermethod=priority in /etc/yum.repos.d/fedora-updates-modular.repo; Configuration: OptionBinding with id "failovermethod" does not exist
Unknown configuration value: failovermethod=priority in /etc/yum.repos.d/fedora-updates-modular.repo; Configuration: OptionBinding with id "failovermethod" does not exist
Unknown configuration value: failovermethod=priority in /etc/yum.repos.d/fedora-updates-modular.repo; Configuration: OptionBinding with id "failovermethod" does not exist
Copr repo for sway owned by rzl                                                                          3.8 kB/s | 3.5 kB     00:00    
reviving: 'rzl-sway' can be revived - repomd matches.
rzl-sway: using metadata from Mon May 20 13:44:13 2019.
Fedora Modular 30 - x86_64                                                                                38 kB/s |  24 kB     00:00    
reviving: 'fedora-modular' can be revived - metalink checksums match.
fedora-modular: using metadata from Fri Apr 26 02:47:30 2019.
repo: downloading from remote: updates-modular
error: Curl error (52): Server returned nothing (no headers, no data) for https://mirror.yandex.ru/fedora/linux/updates/30/Modular/x86_64/repodata/9ed9930186dadc0795c66d49356eabf6ae7eb73ba906f064c9511870f1e5f547-filelists.xml.zck [Empty reply from server] (https://mirror.yandex.ru/fedora/linux/updates/30/Modular/x86_64/repodata/9ed9930186dadc0795c66d49356eabf6ae7eb73ba906f064c9511870f1e5f547-filelists.xml.zck).
error: Curl error (52): Server returned nothing (no headers, no data) for https://mirror.yandex.ru/fedora/linux/updates/30/Modular/x86_64/repodata/4402a68839c7f2eddf1de530546439786db2a0d009432bc58a5e44ea9291b39b-primary.xml.zck [Empty reply from server] (https://mirror.yandex.ru/fedora/linux/updates/30/Modular/x86_64/repodata/4402a68839c7f2eddf1de530546439786db2a0d009432bc58a5e44ea9291b39b-primary.xml.zck).
error: Zchunk header checksum didn't match expected checksum (http://mirror.yandex.ru/fedora/linux/updates/30/Modular/x86_64/repodata/9ed9930186dadc0795c66d49356eabf6ae7eb73ba906f064c9511870f1e5f547-filelists.xml.zck).
error: Zchunk header checksum didn't match expected checksum (http://mirror.yandex.ru/fedora/linux/updates/30/Modular/x86_64/repodata/4402a68839c7f2eddf1de530546439786db2a0d009432bc58a5e44ea9291b39b-primary.xml.zck).
Fedora Modular 30 - x86_64 - Updates                                                                     847 kB/s | 1.1 MB     00:01    
Cannot download 'https://mirrors.fedoraproject.org/metalink?repo=updates-released-modular-f30&arch=x86_64': Checksum error /var/cache/dnf/updates-modular-783da5de2e38c644/repodata/4402a68839c7f2eddf1de530546439786db2a0d009432bc58a5e44ea9291b39b-primary.xml.zck: Unable to read zchunk lead.
Failed to synchronize cache for repo 'updates-modular'
Error: Failed to synchronize cache for repo 'updates-modular'

I don’t want to dig into the issue, and I simply want to disable all modular repos, since AFAIK they are required only for the Silverblue setup, which I (probably) don’t use.

Am I correct?

This is a know Bug here are the information:

https://bugzilla.redhat.com/show_bug.cgi?id=1706627

You can two options:

Please try this workaround (/etc/dnf/dnf.conf):

fastestmirror=True
fastestmirror=False

if this doesn’t work adding (/etc/dnf/dnf.conf):

zchunk = False

However there there is a fixed on the way…

Regards.,