I realise that both US & Russian regimes have moved on since then; particularly those of the USA (Bush 1-Clinton-Bush2-Obama-Trump-Biden) and IMO just as the US seems to not be bound by previous regimes' agreements, so, IMO the current Russian regime is not bound by past Russian regimes' agreements either . That's the norm for Great Powers.
The bottom line here is that if both sides dont recognise the others' National Security Concerns, then there is no hope of a peaceful solution.
Even the best case scenario was achieved for the Ukraine..(ie that russian troops were driven out of pre 2024 Uki borders , that, IMO won't settle the war because Russia will simply support Donbas separatests as they have 2014-2022 which would still preclude the Ukraine qualifying for either NATO or EC membership.
So the sane solution is: -Ceasefire -Peace negotions based on mutual national security concerns.
Supplying Ukraine with long range missiles and the western personell to target/launch them will simply attract an equal if not more powerful response from Russia.
of course you dont need to be Einstein to realise that this is a proxy US-Russian war and the more it escalates the closer the Doomsday Clock gets to Midnight and furthermore on does not have to be a Nuke Physicist to realise that that would be lights out for you and I .
So if you wish that on yourself, then dont think others have such low self-esteem/self worth in sharing your lemming instinct.