The SSCI might be less of a circus show than e.g. House committees, but you still hear preposterous things from them. Look at this interview:
https://www.wired.com/story/mark-warner-senate-committee-hea...
"I know Kent Walker. He’s a good guy. I respect him, but we had the lawyers back in November. This is a hearing that’s going to talk about solutions. I think it speaks volumes that Google doesn’t want to be part of that discussion. I don't think it’s good for them or for coming up with a good solution."
That tells me that either Warner doesn't know what Walker does on a daily basis (he could ask) or he just wants an excuse to skewer Page over China, as in the next paragraph. It's particularly glaring, because he goes out of his way to mention that the hearing was about solutions. Any solution at Google/Alphabet would involve Walker a lot more than Page, who's just not immersed in policy. "We had the lawyers back in November" is such a cheap shot. (Perhaps even cheaper if you know that Warner is a lawyer who never practiced...)
And this is from a Democrat who has more latitude to do his real job on the committee. Out of political calculation, Burr and co. need to avoid getting on the nerves of the guy in the White House by even implying that perhaps his victory was aided by another government. All of this to say that I don't expect much to be done. There's the DETER act, but it's not clear if it will pass, in what shape and with what kind of vigor it will be enforced.