Teams camera too dark

Hello adam_motl The community site is sponsored by Microsoft to be used by members of the community as a way for them to share information and best practices learned from years of experience. The community is considered to be valued members of the extended Microsoft family and include experts in their areas. 

If you require direct Microsoft support, it's best to contact your internal Administrator to open a support ticket, or you can go to answers.microsoft.com for technical support from internal Microsoft staff.  And as you were directed in the response, there is also a Uservoice site managed by Microsoft where you can report bugs or feature suggestions, vote on others, and keep track of their progress.  Microsoft does its best to provide many channels of communication to meet its customers' needs. Thank you for visiting the Tech Community.