SMS messages in Russia are expensive by default. Most carriers offer cheap-ish unlimited SMS packages but I've no idea who they're for. Or how unlimited they really are.
As far as censorship goes, a VPN is better by all metrics than this.
As far as censorship goes, a VPN is better by all metrics than this.
There allegedly is DPI, but it only comes into play as an extra measure against things like domain fronting, proxies, and plaintext HTTP. It'd look at the SNI and inject a RST packet to drop the connection. As it does not even try to implement TCP, analyzing each IP packet in isolation, there are various interesting utilities[1] that mess with it by, for example, splitting the TLS ClientHello into two TCP packets in the middle of the domain name.