Doubt it. Sume (pronounced sue-may) has little ring to it. Suyu sounds like “Nintendo will sue you”.

Both Roms have extensive instructions on their website. The important thing is whether your device is supported.

calyxos.org

wiki.lineageos.org/devices/

You will need to unlock the bootloader and wipe the device. If you’ve never installed android, here be dragons. A backup device is recommendable to say the least. Not liable, etc…

You can degoogle android by removing or sandboxing google play services. CalyxOS and LineageOS dothisb AFAIK.