Is modern democratic socialism functionally different from Leninist socialism?

It may vary by country, but from a UK perspective, a lot of contemporary politics described as “socialist” seems quite different from the Leninist or Marxist-Leninist conception of socialism.

As I understand it, Leninist socialism was focused on revolutionary class struggle, the seizure or replacement of the bourgeois state, the dictatorship of the proletariat, and a transitional state moving toward communism. By contrast, much of modern Western socialism seems more focused on democratic reform, welfare provision, social rights, anti-discrimination, identity issues, public services, and redistribution within existing institutions.

So my question is:

Is modern democratic socialism functionally different from Leninist socialism, or is it better understood as an updated form of the same project?

Related to that, is social progressivism essential to socialism, or is it a contingent feature of modern left-wing coalitions? Historically, some Marxist-Leninist states appear to have been economically socialist or anti-capitalist while also being socially conservative in certain areas. That makes me wonder whether socialism is fundamentally an economic/class theory, or whether it logically requires progressive positions on race, gender, sexuality, immigration, and similar issues.

I’m not asking this as a gotcha. I’m trying to understand where socialists draw the line between socialism as worker/economic control and socialism as a wider theory of liberation or anti-domination, or indeed to understand if there are multiple 'social' camps within socialism and beyond.