Why did he give you a 210? I install for ATT for a living and don’t use those ONTsv unless absolutely necessary.
To your question you can absolutely get 1gb speeds with an install done that way… I haven’t been able to order rj45 ends in 6 months so I’ve been forced to do some jobs this way where running a single patch cord wasn’t feasible.
Edit: I just noticed the fiber half circle lmao
I’m not paying out of pocket for work supplies lol