In what encoding should data be sent to GitLab?

Question

GitLab

Good afternoon, tell me please,
has Gitlab deployed on its server.
I noticed that if you upload changes containing Cyrillic in the code via git, then when viewing it through the gitlab web client, then all Cyrillic is missed, it is not there.
When downloading files from the repository, the Cyrillic encoding is corrupted, and it is not displayed correctly.
I note that the code is created in VisualStudio (Windows)
Do I understand correctly that the source encoding is WIN CP1251, and it is in it that it is loaded into Gitlab.
And do I understand correctly that you need to load in UTF8

Answer 1

correctly
Windows is too localized
for the web utf8 standard