Funny thing is I started using Surfshark just before they started all the YouTube sponsorships. Them doing so many sponsorships actually made me trust them less somehow, if that makes sense.
Mullvad "appears" to be more trustworthy but maybe they are just better at marketing that image. They still cost twice as much as Surfshark.
Yes I agree Surfshark has done some weird things. I find it weird that it's actually the same company now as NordVPN, but they don't make it clear.
Regarding performance, Surfshark is decent speed but still slower than not using a VPN. The more annoying thing is that I get a lot more captchas when using Surfshark. I think these issues are common for all VPNs, though I haven't tried Mullvad yet (I will when my Surfshark subscription ends).