How has Putin’s repression affected the non-Russian peoples of the Russian Federation?

In general

See ADC Memorial, Free Nations of Post-Russia Forum, Politico, Radio Free Europe-Radio Liberty, Centre for East European and International Studies

For North Caucasus (Chechens, Dargins, Avars, Kumyks, Lezgins, Laks, Ingush, Kabards and Balkars, Karachay and Cherkess, Nogai, Ossetians)

General : Wikipedia, Caucasian Knot, Riddle, Radio Free Europe-Radio Liberty

Chechens: HRW, OHCHR, Amnesty International, Caucasian Knot

For Southern Russia (Adyghe, Kalmyks, Crimean Tatars)

General Caucasian Knot, Riddle

Crimean Tatars: ADC Memorial

For Volga region (Bashkirs, Chuvash, Mari, Mordovans, Tatars, Komi-Permyaks, Udmurts)

General: Saying No to War, Ukraine World, Idel.Realities

For Ural region (Khanti and Mansi, Nenets)

General: Free Idel-Ural civil movement, Saying No to War

For Far North and Arctic (Komi, Karelians, Nenets)

General: The Barents Observer

For Siberia (Altai, Buryats, Kharkass, Tuvans)

General: Siberia.Realities

For Far East (Yakuts, Chukotka, Koryaks, Evenks, Udege, Dolgans)

General: Eurasia Daily Monitor

For other (dispersed) minorities (Volga/Russian Germans, Jews, Roma, Meshketian Turks, Ukrainians, Belarussians, Kazakhs, Azerbaijanis, Armenians, Uzbeks)

General: Eurasia Daily Monitor