@JulesIsWeird aside from git itself being FOSS, github is 100% proprietary and creates a lot of vendor lock-in. FOSS projects using github issues as a main entry-point for community interaction basically create the same issues as FOSS projects using slack as their only communication channel

Gitlab is open-core (FOSS 'core' version, proprietary 'premium' version). It also lets you host it yourself besides offering free hosting on gitlab.com