Looks like white did their homework against the Scandinavian. Melts’ book gives 7…Nbd7 as the rights move and because of this game I see why. Still black played very accurate and It is very hard to see the difficulties ahead after 7...e6 and 8...Be7 when one considers 10. f4 being sprung.
I’m not that strong of a chess player, luckily I had looked at this game a few weeks before, low and behold a few days ago someone tried a similar idea.
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.f4?! c6 6.Nf3 Bg4 I equalized easily but slipped in the middle game but still managed a draw.
Some of my analysis after looking at the featured game from the point 8.0-0 I'm thinking that
8...Nbd7 9.Nh4 Bg6 (10. Nxg6 hxg6 11. Re1 0-0-0 looks good for black) 10.f4 0–0–0 appears to be equal too.
If 10...Bxc2 11.Qe2 Qxd4+ 12.Kh2 (12.Be3?!.....this doesn't do anything ...at least I don't see it for after 12...Qxe3+ 13.Qxe3 Bc5 14.Qf2 after the possible exchanges, white knight at h4 is out of position. An example maybe? 14...Ne4 15.Qxc5 Ndxc5 16.Nxe4 Bxe4 17.b4 Nd7 18.Rad1 Rd8 19.f5 =) 12...Nb6 13.Bxe6 fxe6 14.Qxc2 Bd6 15.Qe2 0–0–0 =) 12…Nd5 and I think black is fine
8...h6 looks good too. For after 9.Bd3 Bxd3 10.Qxd3 Be7 11.Ne5 Nbd7 12.Bf4 Nxe5 13.Bxe5 Qb4 (13...Qd7 14.Qf3 0–0–0 I think black is ok. and probably the way to go) because after 13…Qb4?! white has 14.a3 Qb6 with queenside space and the initiative. But blacks position IMO is still solid I think it should hold
However, as stated earlier I’m not that strong of a chess player