Well, Tor (with bridges) still works just fine, I don't really know any other "crowdsourced" proxy networks. Telegram isn't blocked (it used to be, but everyone used it anyway, including people in the government, so they unblocked it), so any info there is freely available. Wireguard and OpenVPN are blocked (even within Russia for some reason), shadowsocks is throttled on certain connections but works fine, and I haven't extensively tested anything else.

Also, mobile networks are used for testing stricter blocking measures before rolling them out to landline connections

it might work with obfuscation, in general my preferred solution is VPN+proxy, the proxy is used for bypassing the DPI and doesn't have to adhere to particularly high standards and can be easily swapped, and the VPN is used via the proxy for actually routing L3 traffic