There are way worst VPNs out there, they are not only a scam and spyware, like Google- or Opera"VPNs", they also dangerous. eg Hola VPN 🥶
Apart of Windscribe, Proton and maybe Calyx, there isn't any trustworth free VPN out there, and all free, even if they are trustworth are limited, in use of monthly amount of data (10 Gb in Windscribe), or/and in the amount of servers. If a free VPN offers a lot of servers AND unlimited amount of data, by definition is a scam or worse. Servers cost money and free VPN only can offer free dedicated public servers and there a not so much, only a few in some countries.