I already have +2 access as WMDE staff (@Lucas_Werkmeister_WMDE), but @Legoktm says I should also request it as a volunteer developer. See merged MediaWiki core changes and non-core changes as a volunteer and many more as staff, as well as core reviews as staff (many of them in collaboration with @Ladsgroup).

Perhaps also worth mentioning that I’m Toolforge root (also as a volunteer): T314527