visual filter/archiving of obsolete tags/branche in Gitlab UI?

Description

Hello,

Some of our EE end users rely on feature branching and CI/CD approach, the amount of tags/branches grows constantly... And tag/branch browsing becomes almost unusable for them after few weeks.

Proposal

We would like to "archive" oldest tags/branches (visually speaking in UI, not in git itself), so that only newest/relevant ones appear by default. There are multiple ways to provide such features (probably not exhaustive, if you find other ones more relevant please share them):

• on/off flags on each tag/branch to mark them as "archived"
• a logical view of tags/branches based on patterns (like google mail tags?)
• hierarchival namespace/folders structure to show/hide a group of tags/branches

Links / references

This behaviour is similar to the one described in https://gitlab.com/gitlab-org/gitlab-ce/issues/24889, but the implementation would be probably different as suggested by @cperessini