Aww man I love this new era!! https://twetch.app/t/45e7740e…

Relay rules still require < 100 KB transactions AFAIK. You will have trouble getting things mined if > 100 KB. Please correct me if I'm wrong.

Unless you know a miner, right?

Max transaction size is 1GB, a default on size to accept is 10MB:

https://github.com/bitcoin-sv-specs/protocol/blob/master/updates/genesis-spec.md