Asp.net core + EFCore + PostgreSQL: Trouble with migration?

Question

PostgreSQL

There is an old migration that worked great with MSSQL.

protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.CreateTable(
                name: "Users",
                columns: table => new
                {
                    Id = table.Column<int>(nullable: false)
                        .Annotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn),
                    Login = table.Column<string>(nullable: false),
                    Password = table.Column<string>(nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_Users", x => x.Id);
                });
        }

Now I moved to PostgreSQL and something went wrong ..
when adding data to the table, without explicitly specifying the id, an exception occurs:

null value in column "Id" violates not-null constraint
Failed executing DbCommand (4ms) [Parameters=[@p0='?', @p1='?'], CommandType='Text', CommandTimeout='30']
INSERT INTO "Users" ("Login", "Password")
VALUES (@p0, @p1)
RETURNING "Id";

I suppose the problem is in Sql annotations?