There’s the:

• International Switch 2 (Expensive, has all language packs)
• Region Locked Switch 2 (Cheapest, only supports Japanese)
• Upcoming EU Exclusive Switch 2 (It has Portable battery)

I mean, they look exactly the same on the outside with the only difference being the console price. The “Normal” Switch 2 is 470€ (inc. VAT) / $450 (+Sales Tax) while the JP version is closer to ~270€ / ~$307 (if importing: consider custom duties besides shipping) with a catch to keep in mind: only Japanese language is supported and JP accounts are only valid.

There is going to be a European variant with the difference being that the battery is portable & detatchable (I think?) integrated into the console that’ll release sometime next year. Since the Japanese version doesn’t have the ability to change language or region but it’s the cheapest, even though I can understand and speak it should I really purchase the console?

The Japanese version can read cartridges from foreign copies but with this sacrifice: the language pack (if supported) will be set to Japanese by default (unless there are in game settings where you can manually select languages) but for the most part: games detect what language your console is set in, so by default it’ll be the same as your hardware.